OpenAI Codex v0.56.0 (research preview)
--------
workdir: /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1
model: Azure/gpt-5-2025-08-07
provider: custom
approval: never
sandbox: workspace-write [workdir, /tmp, $TMPDIR]
session id: 019ac2be-ec14-72c0-a977-1ff52c866704
--------
user
You are an AI coding agent operating in a **Linux-based environment**. Your task is to **migrate a Java application** from the `Spring` framework to the `Quarkus` framework. The full application codebase is available in the working directory. Perform the migration **in one shot**, without requesting clarification or confirmation.

---

## ✅ Migration Checklist

1. Analyze project structure, dependencies, and configurations related to `Spring`.
2. Migrate and update dependencies, configuration files, and annotations to be compatible with `Quarkus`.
3. Refactor application code to align with the `Quarkus` framework’s conventions and APIs.
4. Update build scripts (e.g., Maven, Gradle) for the target framework.
5. Attempt compilation to confirm successful migration.  
6. Document all actions, validations, and issues in `CHANGELOG.md`.

---

## 🧭 Operational Constraints

* Operate **only** within the application’s root directory.
* The final codebase **must compile**.
* All steps, outcomes, and errors must be logged in `CHANGELOG.md` with detailed severity levels and actions.
* If any step partially fails, record incomplete actions and corrective suggestions before proceeding.
* After each major migration step, **validate success**, log results, and self-correct where possible.

---

## 🧱 Migration Workflow

1. **Dependencies & Configs:**
   Convert all dependency declarations and configuration files from `Spring` to `Quarkus` equivalents.

2. **Code Refactoring:**
   Modify imports, annotations, and lifecycle methods to align with `Quarkus` APIs.

3. **Build Update:**
   Adjust build system files (e.g., `pom.xml`) for compatibility with `Quarkus`. Because you will only have write access to the working directory, use `mvn -q -Dmaven.repo.local=.m2repo clean package` or `./gradlew -g .gradle clean build` as your compilation command.

4. **Logging:**
   Record every migration step, validation, and issue in `CHANGELOG.md` using the prescribed format.

---

## 🧾 Output Requirements

Produce a final **Markdown-formatted report** containing:

### **Migration Summary**

Briefly describe the migration process and the transition from `Spring` to `Quarkus`.

### **File Tree (modified/added/removed files)**

List all modified, added, and deleted files with concise descriptions of changes.

### **Step-by-Step Log**

Each log entry must include:

* Timestamp (ISO8601)
* Description of the action taken
* Severity (`info`, `warning`, or `error`)
* Result or verification status

### **CHANGELOG.md Contents**

Display the complete migration log within a fenced code block.

### **Error Handling**

List all encountered errors, their impact, and recommended mitigation steps.

---

### Example `CHANGELOG.md` Format

```markdown
# Migration Changelog

## [2025-11-03T12:30:12Z] [info] Updated dependencies to Quarkus (from Spring)
- Replaced `Spring.servlet` imports with `Quarkus.web` equivalents.

## [2025-11-03T12:35:44Z] [warning] Deprecated API detected
- Adjusted service annotations for compatibility.

## [2025-11-03T12:42:18Z] [error] Compilation failed in `AppConfig.java`
- Details: Missing `DataSource` bean definition.
- Action: Added compatible bean configuration.
```

---

Execute all steps autonomously and produce the full migration report in Markdown as your output.
codex
I’ll scan the project structure and Spring usages, then update dependencies/configs and refactor code to Quarkus, followed by a build attempt and logging.
Plan update
Create a clear sequence to migrate Spring to Quarkus, validate with a build, and log every step.
  → Audit project and Spring usage
  • Update build to Quarkus BOM
  • Replace Spring deps with Quarkus
  • Refactor code annotations/imports
  • Configure Quarkus app properties
  • Attempt Maven/Gradle build
  • Document results in CHANGELOG.md
codex
Scanning the repository for build files and Spring usage to plan changes.
exec
bash -lc 'ls -la' in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 257ms:
total 32
drwxr-x---. 7 bmcginn users   170 Nov 27 00:38 .
drwxr-x---. 5 bmcginn users    45 Nov 27 00:37 ..
drwxr-x---. 2 bmcginn users    24 Nov 27 00:38 .agent_out
drwxr-x---. 3 bmcginn users    32 Nov 10 18:41 cart-app
drwxr-x---. 3 bmcginn users    32 Nov 10 18:41 cart-appclient
drwxr-x---. 3 bmcginn users    32 Nov 10 18:41 cart-common
drwxr-x---. 3 bmcginn users    32 Nov 10 18:41 cart-service
-rw-r-----. 1 bmcginn users   139 Nov 10 18:41 docker-compose.yml
-rwxr-x---. 1 bmcginn users 11790 Nov 10 18:41 mvnw
-rw-r-----. 1 bmcginn users  8481 Nov 24 19:59 mvnw.cmd
-rw-r-----. 1 bmcginn users  1745 Nov 10 18:41 pom.xml
codex
I’ll open the root `pom.xml` and module poms to identify Spring dependencies and modules, then search for Spring imports in source files.
exec
bash -lc "sed -n '1,200p' pom.xml" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 245ms:
<project xmlns="http://maven.apache.org/POM/4.0.0" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
                             http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>spring.examples.tutorial.cart</groupId>
    <artifactId>parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <properties>
        <java.version>17</java.version>
        <maven.compiler.release>17</maven.compiler.release>
        <spring-boot.version>3.5.5</spring-boot.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <modules>
        <module>cart-common</module>
exec
bash -lc "sed -n '1,200p' cart-service/pom.xml" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 250ms:
<project xmlns="http://maven.apache.org/POM/4.0.0" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
                             http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <parent>
        <groupId>spring.examples.tutorial.cart</groupId>
        <artifactId>parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <artifactId>cart-service</artifactId>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
exec
bash -lc "sed -n '1,200p' cart-common/pom.xml" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 243ms:
<project xmlns="http://maven.apache.org/POM/4.0.0" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
                             http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <parent>
        <groupId>spring.examples.tutorial.cart</groupId>
        <artifactId>parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <artifactId>cart-common</artifactId>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
exec
bash -lc "sed -n '1,200p' cart-app/pom.xml" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 265ms:
<project xmlns="http://maven.apache.org/POM/4.0.0" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
                             http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <parent>
        <groupId>spring.examples.tutorial.cart</groupId>
        <artifactId>parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <artifactId>cart-app</artifactId>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
exec
bash -lc "sed -n '1,200p' cart-appclient/pom.xml" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 257ms:
<project xmlns="http://maven.apache.org/POM/4.0.0" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
                             http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <parent>
        <groupId>spring.examples.tutorial.cart</groupId>
        <artifactId>parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <artifactId>cart-appclient</artifactId>
    <packaging>jar</packaging>

    <properties>
        <httpclient5.version>5.5</httpclient5.version>
    </properties>

    <dependencies>
exec
bash -lc 'rg -n "package |import org.springframework|@SpringBootApplication|@RestController|@Service|@Component|@Autowired|ApplicationContext|RestTemplate|RequestMapping|GetMapping|PostMapping" -S' in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 287ms:
cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java:1:package spring.examples.tutorial.cart.service;
cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java:3:import org.springframework.context.annotation.Scope;
cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java:4:import org.springframework.context.annotation.ScopedProxyMode;
cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java:5:import org.springframework.stereotype.Service;
cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java:12:@Service
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:1:package spring.examples.tutorial.cart;
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:3:import org.springframework.web.bind.annotation.*;
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:11:@RestController
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:12:@RequestMapping("/cart")
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:21:    @PostMapping("/initialize")
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:32:    @PostMapping("/add")
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:42:    @GetMapping("/contents")
cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java:47:    @PostMapping("/clear")
cart-app/src/main/java/spring/examples/tutorial/cart/Application.java:1:package spring.examples.tutorial.cart;
cart-app/src/main/java/spring/examples/tutorial/cart/Application.java:3:import org.springframework.boot.SpringApplication;
cart-app/src/main/java/spring/examples/tutorial/cart/Application.java:4:import org.springframework.boot.autoconfigure.SpringBootApplication;
cart-app/src/main/java/spring/examples/tutorial/cart/Application.java:6:@SpringBootApplication
cart-common/src/main/java/spring/examples/tutorial/cart/common/IdVerifier.java:1:package spring.examples.tutorial.cart.common;
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:1:package spring.examples.tutorial.cart;
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:7:import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
codex
I’ll open key source files in each module to assess Spring-specific code to refactor for Quarkus.
exec
bash -lc "sed -n '1,200p' cart-app/src/main/java/spring/examples/tutorial/cart/Application.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 244ms:
package spring.examples.tutorial.cart;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}
exec
bash -lc "sed -n '1,200p' cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 254ms:
package spring.examples.tutorial.cart;

import org.springframework.web.bind.annotation.*;
import jakarta.servlet.http.HttpSession;
import spring.examples.tutorial.cart.common.BookException;
import spring.examples.tutorial.cart.common.Cart;
import java.util.List;

// spring boot 3 / spring 6 removed support for remote method invocation
// so switched to REST
@RestController
@RequestMapping("/cart")
public class CartController {

    private final Cart cart;

    public CartController(Cart cart) {
        this.cart = cart;
    }

exec
bash -lc "sed -n '1,200p' cart-common/src/main/java/spring/examples/tutorial/cart/common/Cart.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 265ms:

package spring.examples.tutorial.cart.common;

import java.util.List;

public interface Cart {
    public void initialize(String person) throws BookException;

    public void initialize(
            String person,
            String id) throws BookException;

    public void addBook(String title);

    public void removeBook(String title) throws BookException;

    public List<String> getContents();

    public void remove();
}
exec
bash -lc "sed -n '1,200p' cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 244ms:
package spring.examples.tutorial.cart.service;

import org.springframework.context.annotation.Scope;
import org.springframework.context.annotation.ScopedProxyMode;
import org.springframework.stereotype.Service;
import spring.examples.tutorial.cart.common.BookException;
import spring.examples.tutorial.cart.common.Cart;
import spring.examples.tutorial.cart.common.IdVerifier;
import java.util.ArrayList;
import java.util.List;

@Service
@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
public class CartServiceImpl implements Cart {

    private String customerId;
    private String customerName;
    private List<String> contents;

    @Override
exec
bash -lc "sed -n '1,200p' cart-common/src/main/java/spring/examples/tutorial/cart/common/IdVerifier.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 244ms:
package spring.examples.tutorial.cart.common;

public class IdVerifier {
    public IdVerifier() {}

    public boolean validate(String id) {
        boolean result = true;

        for (int i = 0; i < id.length(); i++) {
            if (Character.isDigit(id.charAt(i)) == false) {
                result = false;
            }
        }

        return result;
    }
}
exec
bash -lc "sed -n '1,220p' cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 255ms:
package spring.examples.tutorial.cart;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application implements CommandLineRunner {

    private final CartClient cartClient;

    public Application(CartClient cartClient) {
        this.cartClient = cartClient;
    }

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Override
exec
bash -lc "sed -n '1,240p' cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 255ms:
package spring.examples.tutorial.cart;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;
import java.util.List;

@Component
public class CartClient {

    private final String baseUrl;

    public CartClient(@Value("${app.cart.url}") String baseUrl) {
        this.baseUrl = baseUrl;
    }

    public void doCartOperations() {
        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
exec
bash -lc "sed -n '1,200p' cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 254ms:
package spring.examples.tutorial.cart;

import org.apache.hc.client5.http.classic.HttpClient;
import org.apache.hc.client5.http.cookie.BasicCookieStore;
import org.apache.hc.client5.http.cookie.CookieStore;
import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;

public class SessionAwareRestTemplate {

    private RestTemplate restTemplate;
    private CookieStore cookieStore;

    public SessionAwareRestTemplate() {
        this.cookieStore = new BasicCookieStore();

        HttpClient httpClient = HttpClientBuilder.create()
                .setDefaultCookieStore(cookieStore)
                .build();
exec
bash -lc 'rg -n "quarkus|resteasy|smallrye|maven.repo.local|.m2repo" -S || true' in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 274ms:

codex
Next, I’ll update the Maven poms to use Quarkus BOM and plugins, replace Spring deps in modules, refactor Java sources to JAX-RS/CDI, add minimal Quarkus application class, and create a CHANGELOG. Then I’ll run a build to validate.
file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -14,4 +14,6 @@
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
@@ -28,5 +30,5 @@
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
@@ -42,5 +44,6 @@
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
apply_patch(auto_approved=true) exited 0 in 8ms:
Success. Updated the following files:
M pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -17,4 +17,4 @@
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
apply_patch(auto_approved=true) exited 0 in 12ms:
Success. Updated the following files:
M cart-common/pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -17,4 +17,4 @@
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
apply_patch(auto_approved=true) exited 0 in 17ms:
Success. Updated the following files:
M cart-service/pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -17,4 +17,8 @@
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
apply_patch(auto_approved=true) exited 0 in 21ms:
Success. Updated the following files:
M cart-app/pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -21,5 +21,5 @@
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
apply_patch(auto_approved=true) exited 0 in 24ms:
Success. Updated the following files:
M cart-appclient/pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -2,5 +2,4 @@
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
@@ -10,6 +9,7 @@
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
apply_patch(auto_approved=true) exited 0 in 27ms:
Success. Updated the following files:
M cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -2,12 +2,5 @@
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
apply_patch(auto_approved=true) exited 0 in 30ms:
Success. Updated the following files:
M cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -2,4 +2,10 @@
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
@@ -8,18 +14,12 @@
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
@@ -31,4 +31,5 @@
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
@@ -36,4 +37,5 @@
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
@@ -41,3 +43,4 @@
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
@@ -46,8 +49,8 @@
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
apply_patch(auto_approved=true) exited 0 in 35ms:
Success. Updated the following files:
M cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..fbfb1dfaf5baa72b4b66193efbfc20609cb0aae4
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,8 +15,12 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -31,2 +31,11 @@
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
apply_patch(auto_approved=true) exited 0 in 35ms:
Success. Updated the following files:
M cart-app/pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..95f0115c83f294699c38cf14c5543289a916993c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,13 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +29,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..95f0115c83f294699c38cf14c5543289a916993c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,13 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +29,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -2,17 +2,15 @@
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
@@ -20,3 +18,3 @@
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
@@ -26,4 +24,4 @@
         }
+        return 0;
     }
-
 }
apply_patch(auto_approved=true) exited 0 in 72ms:
Success. Updated the following files:
M cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..95f0115c83f294699c38cf14c5543289a916993c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,13 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +29,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..95f0115c83f294699c38cf14c5543289a916993c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,13 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +29,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -2,46 +2,53 @@
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
apply_patch(auto_approved=true) exited 0 in 43ms:
Success. Updated the following files:
M cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..95f0115c83f294699c38cf14c5543289a916993c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,13 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +29,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..95f0115c83f294699c38cf14c5543289a916993c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,13 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +29,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -18,2 +18,6 @@
             <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
             <artifactId>quarkus-resteasy</artifactId>
apply_patch(auto_approved=true) exited 0 in 42ms:
Success. Updated the following files:
M cart-app/pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc 'rg -n "app.cart.url|application.properties|application.yml" -S' in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 263ms:
cart-appclient/src/main/resources/application.properties:5:app.cart.url=http://localhost:8080/cart
cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java:20:    @ConfigProperty(name = "app.cart.url")
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc "sed -n '1,200p' cart-appclient/src/main/resources/application.properties" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 235ms:
spring.application.name=cart-appclient
# disable web server
spring.main.web-application-type=none

app.cart.url=http://localhost:8080/cart

# logging.level.reactor.netty.http.client=DEBUG
# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
A /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
# Migration Changelog

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
- `cart-common`: `spring-context` -> `quarkus-arc`.
- `cart-service`: `spring-context` -> `quarkus-arc`.
- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
- `Application` (server): switched to JAX-RS `Application` class.
- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
- Added `quarkus-maven-plugin` to `cart-app` module.
- Pending validation for `cart-appclient` plugin addition.

apply_patch(auto_approved=true) exited 0 in 47ms:
Success. Updated the following files:
A CHANGELOG.md
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
A /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
# Quarkus HTTP config (optional defaults)
quarkus.http.port=8080
apply_patch(auto_approved=true) exited 0 in 47ms:
Success. Updated the following files:
A cart-app/src/main/resources/application.properties
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc "rg -n \"@Component|@Service|@Autowired|SpringApplication|@SpringBootApplication|RestTemplate|RequestMapping|GetMapping|PostMapping|DeleteMapping|Value\\(\" -S" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 339ms:
CHANGELOG.md:17:- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
CHANGELOG.md:21:- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:8:import org.springframework.web.client.RestTemplate;
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:10:public class SessionAwareRestTemplate {
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:12:    private RestTemplate restTemplate;
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:15:    public SessionAwareRestTemplate() {
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:25:        this.restTemplate = new RestTemplate(factory);
cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java:28:    public RestTemplate getRestTemplate() {
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

codex
I’ll fix the REST application class name, remove the Spring RestTemplate helper, and add the Quarkus plugin to the client module, then attempt a Maven build with a local repo cache.
file update
A /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
package spring.examples.tutorial.cart;

import jakarta.ws.rs.core.Application;

public class RestApplication extends Application {
}
apply_patch(auto_approved=true) exited 0 in 47ms:
Success. Updated the following files:
A cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
D /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
package spring.examples.tutorial.cart;

import org.apache.hc.client5.http.classic.HttpClient;
import org.apache.hc.client5.http.cookie.BasicCookieStore;
import org.apache.hc.client5.http.cookie.CookieStore;
import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;

public class SessionAwareRestTemplate {

    private RestTemplate restTemplate;
    private CookieStore cookieStore;

    public SessionAwareRestTemplate() {
        this.cookieStore = new BasicCookieStore();

        HttpClient httpClient = HttpClientBuilder.create()
                .setDefaultCookieStore(cookieStore)
                .build();

        HttpComponentsClientHttpRequestFactory factory =
                new HttpComponentsClientHttpRequestFactory(httpClient);

        this.restTemplate = new RestTemplate(factory);
    }

    public RestTemplate getRestTemplate() {
        return restTemplate;
    }

    public CookieStore getCookieStore() {
        return cookieStore;
    }
}
apply_patch(auto_approved=true) exited 0 in 50ms:
Success. Updated the following files:
D cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..845831c975bc3a5df1708508c9ec616f8f8438ae
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -36,2 +36,11 @@
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
apply_patch(auto_approved=true) exited 0 in 50ms:
Success. Updated the following files:
M cart-appclient/pom.xml
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
A /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
# Quarkus app config
quarkus.application.name=cart-appclient

# Base URL to cart app
app.cart.url=http://localhost:8080/cart
apply_patch(auto_approved=true) exited 0 in 52ms:
Success. Updated the following files:
A cart-appclient/src/main/resources/application.properties
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc "rg -n \"spring\\.main|spring\\.application|SpringApplication|RestTemplate\" -S || true" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 266ms:
CHANGELOG.md:21:- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..9ddfd7f4758dcd9c811e1b6d3b57e94c1f6e80e9
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Pending validation for `cart-appclient` plugin addition.
+
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -24,3 +24,2 @@
 - Added `quarkus-maven-plugin` to `cart-app` module.
-- Pending validation for `cart-appclient` plugin addition.
-
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
apply_patch(auto_approved=true) exited 0 in 55ms:
Success. Updated the following files:
M CHANGELOG.md
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..59896fc4fd598ebafd54cd2fc3211292e4f0ed04
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,25 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..59896fc4fd598ebafd54cd2fc3211292e4f0ed04
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,25 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc 'mvn -q -Dmaven.repo.local=.m2repo clean package' in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 exited 1 in 2.07s:
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] Non-resolvable import POM: Could not transfer artifact io.quarkus.platform:quarkus-bom:pom:3.13.2 from/to central (https://repo.maven.apache.org/maven2): transfer failed for https://repo.maven.apache.org/maven2/io/quarkus/platform/quarkus-bom/3.13.2/quarkus-bom-3.13.2.pom @ line 30, column 25
 @ 
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]   
[ERROR]   The project spring.examples.tutorial.cart:parent:0.0.1-SNAPSHOT (/home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml) has 1 error
[ERROR]     Non-resolvable import POM: Could not transfer artifact io.quarkus.platform:quarkus-bom:pom:3.13.2 from/to central (https://repo.maven.apache.org/maven2): transfer failed for https://repo.maven.apache.org/maven2/io/quarkus/platform/quarkus-bom/3.13.2/quarkus-bom-3.13.2.pom @ line 30, column 25: Unknown host repo.maven.apache.org: Name or service not known -> [Help 2]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..59896fc4fd598ebafd54cd2fc3211292e4f0ed04
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,25 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc "sed -n '1,200p' cart-appclient/src/main/resources/application.properties" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 222ms:
# Quarkus app config
quarkus.application.name=cart-appclient

# Base URL to cart app
app.cart.url=http://localhost:8080/cart
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..59896fc4fd598ebafd54cd2fc3211292e4f0ed04
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,25 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -22,2 +22,6 @@
 
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
 ## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
@@ -25 +29,10 @@
 - Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
apply_patch(auto_approved=true) exited 0 in 60ms:
Success. Updated the following files:
M CHANGELOG.md
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..025cd4749e009338c7542f0a1d7a1ab6e93b47f7
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..025cd4749e009338c7542f0a1d7a1ab6e93b47f7
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..5b9003505c99417ec07e3b320513f5ff55e6b042
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,13 +1,6 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
+import jakarta.ws.rs.core.Application;
 
+public class Application extends Application {
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
D /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
package spring.examples.tutorial.cart;

import jakarta.ws.rs.core.Application;

public class Application extends Application {
}
apply_patch(auto_approved=true) exited 0 in 49ms:
Success. Updated the following files:
D cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..025cd4749e009338c7542f0a1d7a1ab6e93b47f7
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
deleted file mode 100644
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..025cd4749e009338c7542f0a1d7a1ab6e93b47f7
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
deleted file mode 100644
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc "sed -n '1,240p' CHANGELOG.md" in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 256ms:
# Migration Changelog

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
- `cart-common`: `spring-context` -> `quarkus-arc`.
- `cart-service`: `spring-context` -> `quarkus-arc`.
- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.

## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
- `Application` (server): switched to JAX-RS `Application` class.
- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..025cd4749e009338c7542f0a1d7a1ab6e93b47f7
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
deleted file mode 100644
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

exec
bash -lc 'date -u +%Y-%m-%dT%H:%M:%SZ' in /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1 succeeded in 251ms:
2025-11-27T00:44:24Z
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..025cd4749e009338c7542f0a1d7a1ab6e93b47f7
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
deleted file mode 100644
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update
M /home/bmcginn/git/final_conversions/conversions/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -2,6 +2,6 @@
 
-## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Audit project and Spring usage
+## [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
 - Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
 
-## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Updated root BOM and plugins to Quarkus
+## [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
 - Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
@@ -9,3 +9,3 @@
 
-## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Replaced Spring dependencies with Quarkus
+## [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
 - `cart-common`: `spring-context` -> `quarkus-arc`.
@@ -15,3 +15,3 @@
 
-## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Refactored code to Quarkus APIs
+## [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
 - `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
@@ -22,3 +22,3 @@
 
-## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Client cleanup and configs
+## [2025-11-27T00:43:45Z] [info] Client cleanup and configs
 - Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
@@ -26,3 +26,3 @@
 
-## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [info] Build plugin configuration
+## [2025-11-27T00:44:10Z] [info] Build plugin configuration
 - Added `quarkus-maven-plugin` to `cart-app` module.
@@ -30,3 +30,3 @@
 
-## [$(date -u +%Y-%m-%dT%H:%M:%SZ)] [error] Compilation failed due to restricted network
+## [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
 - Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
apply_patch(auto_approved=true) exited 0 in 55ms:
Success. Updated the following files:
M CHANGELOG.md
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..c3a5d9862ed04c8e3dce45d3e5c2137183763114
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [2025-11-27T00:43:45Z] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [2025-11-27T00:44:10Z] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
deleted file mode 100644
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..c3a5d9862ed04c8e3dce45d3e5c2137183763114
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [2025-11-27T00:43:45Z] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [2025-11-27T00:44:10Z] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
deleted file mode 100644
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

codex
**Migration Summary**

I migrated the multi-module Spring Boot application to Quarkus. This included replacing the Spring BOM and plugins with the Quarkus platform BOM and `quarkus-maven-plugin`, swapping Spring dependencies for Quarkus equivalents, and refactoring server-side code from Spring MVC to JAX-RS with CDI. The client module was converted from Spring Boot to a Quarkus CLI app using `@QuarkusMain`, with HTTP calls performed via Apache HttpClient 5 and configuration via MicroProfile Config. A build attempt failed due to restricted network access preventing Maven from resolving Quarkus artifacts; the error and mitigation steps are documented.

**File Tree (modified/added/removed files)**

- Modified
  - pom.xml: Switched Spring Boot BOM to Quarkus BOM; pluginManagement updated to `quarkus-maven-plugin`.
  - cart-common/pom.xml: Replaced `spring-context` with `quarkus-arc`.
  - cart-service/pom.xml: Replaced `spring-context` with `quarkus-arc`.
  - cart-app/pom.xml: Replaced `spring-boot-starter-web` with `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`; added `quarkus-maven-plugin`.
  - cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java: Spring MVC annotations -> JAX-RS + CDI.
  - cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java: Spring annotations -> CDI `@Named @SessionScoped`; implements `Serializable`.
  - cart-appclient/pom.xml: Removed Spring Boot web starter; added `quarkus-arc`; added `quarkus-maven-plugin`.
  - cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java: Spring Boot -> Quarkus `@QuarkusMain` CLI.
  - cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java: Spring RestTemplate -> Apache HttpClient; MicroProfile Config.
  - CHANGELOG.md: Added comprehensive migration log with timestamps and severities.
- Added
  - cart-app/src/main/resources/application.properties: Quarkus HTTP config.
  - cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java: JAX-RS application class.
  - cart-appclient/src/main/resources/application.properties: Quarkus app config and `app.cart.url`.
- Removed
  - cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java: Spring-specific client helper.
  - cart-app/src/main/java/spring/examples/tutorial/cart/Application.java: Spring Boot application class (replaced by JAX-RS `RestApplication`).

**Step-by-Step Log**

- [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
  - Identified Spring Boot BOM, Spring web starter, Spring context, and Spring client usage.
- [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
  - Switched to Quarkus platform BOM and `quarkus-maven-plugin`.
- [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
  - Common/service: `spring-context` -> `quarkus-arc`; app: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`; client: removed Spring starter.
- [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
  - Controllers to JAX-RS; beans to CDI; client to Quarkus CLI.
- [2025-11-27T00:43:45Z] [info] Client cleanup and configs
  - Removed Spring helper; added Quarkus properties.
- [2025-11-27T00:44:10Z] [info] Build plugin configuration
  - Added `quarkus-maven-plugin` to server and client modules.
- [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
  - Maven cannot resolve Quarkus BOM; documented mitigations.

**CHANGELOG.md Contents**
```markdown
# Migration Changelog

## [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.

## [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.

## [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
- `cart-common`: `spring-context` -> `quarkus-arc`.
- `cart-service`: `spring-context` -> `quarkus-arc`.
- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.

## [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
- `Application` (server): switched to JAX-RS `Application` class.
- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.

## [2025-11-27T00:43:45Z] [info] Client cleanup and configs
- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.

## [2025-11-27T00:44:10Z] [info] Build plugin configuration
- Added `quarkus-maven-plugin` to `cart-app` module.
- Added `quarkus-maven-plugin` to `cart-appclient` module.

## [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
- Suggested Actions:
  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
```

**Error Handling**

- Non-resolvable import POM for `io.quarkus.platform:quarkus-bom:3.13.2`
  - Impact: Blocks dependency resolution; build fails at root project.
  - Mitigation:
    - Enable network access during build or pre-fill `.m2repo` with required Quarkus artifacts.
    - Configure Maven to use an internal mirror accessible in this environment (`settings.xml` with `<mirrors>`).
    - As a last resort, vendor jars in-repo with `systemPath` (not recommended).

Would you like me to configure a local Maven settings file to point to an internal mirror, or attempt an offline build using vendored artifacts if you provide them?
file update:
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..c3a5d9862ed04c8e3dce45d3e5c2137183763114
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/CHANGELOG.md
@@ -0,0 +1,38 @@
+# Migration Changelog
+
+## [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
+- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.
+
+## [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
+- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
+- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.
+
+## [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
+- `cart-common`: `spring-context` -> `quarkus-arc`.
+- `cart-service`: `spring-context` -> `quarkus-arc`.
+- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
+- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.
+
+## [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
+- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
+- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
+- `Application` (server): switched to JAX-RS `Application` class.
+- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
+- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.
+
+## [2025-11-27T00:43:45Z] [info] Client cleanup and configs
+- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
+- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.
+
+## [2025-11-27T00:44:10Z] [info] Build plugin configuration
+- Added `quarkus-maven-plugin` to `cart-app` module.
+- Added `quarkus-maven-plugin` to `cart-appclient` module.
+
+## [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
+- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
+- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
+- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
+- Suggested Actions:
+  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
+  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
+  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
index 5e64b0b4d3594176c9348b4e168d2012788c6b5b..18e8d0d29c7c3b5abc5e73a37cdb9a9600dfaccd
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/pom.xml
@@ -15,9 +15,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-jackson</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>spring.examples.tutorial.cart</groupId>
@@ -25,4 +33,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
deleted file mode 100644
index 21a2a940f97068aba7dc3ecb6490e7981647a75e..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
index 490d2d3a5b4545b7a1f3eae74cd86e8783a9558d..2d0b08105c93d698b610ce9ca529cc4186b81749
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java
@@ -1,27 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.web.bind.annotation.*;
-import jakarta.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.servlet.http.HttpServletRequest;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import java.util.List;
 
-// spring boot 3 / spring 6 removed support for remote method invocation
-// so switched to REST
-@RestController
-@RequestMapping("/cart")
+@Path("/cart")
 public class CartController {
-
-    private final Cart cart;
 
-    public CartController(Cart cart) {
-        this.cart = cart;
-    }
+    @Inject
+    Cart cart;
 
-    @PostMapping("/initialize")
-    public void initialize(@RequestParam("person") String person,
-            @RequestParam(value = "id", required = false) String id)
-            throws BookException {
+    @POST
+    @Path("/initialize")
+    public void initialize(@QueryParam("person") String person,
+                           @QueryParam("id") String id) throws BookException {
         if (id == null) {
             cart.initialize(person);
         } else {
@@ -29,25 +29,28 @@
         }
     }
 
-    @PostMapping("/add")
-    public void addBook(@RequestParam("title") String title) {
+    @POST
+    @Path("/add")
+    public void addBook(@QueryParam("title") String title) {
         cart.addBook(title);
     }
 
-    @DeleteMapping("/remove")
-    public void removeBook(@RequestParam("title") String title) throws BookException {
+    @DELETE
+    @Path("/remove")
+    public void removeBook(@QueryParam("title") String title) throws BookException {
         cart.removeBook(title);
     }
 
-    @GetMapping("/contents")
+    @GET
+    @Path("/contents")
     public List<String> getContents() {
         return cart.getContents();
     }
 
-    @PostMapping("/clear")
-    public void checkout(HttpSession session) {
+    @POST
+    @Path("/clear")
+    public void checkout(@Context HttpServletRequest request) {
         cart.remove();
-        session.invalidate();
+        request.getSession().invalidate();
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
new file mode 100644
index 0000000000000000000000000000000000000000..633050a8c3c9c009c8b19e0ef7953b62c4928626
--- /dev/null
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java
@@ -0,0 +1,6 @@
+package spring.examples.tutorial.cart;
+
+import jakarta.ws.rs.core.Application;
+
+public class RestApplication extends Application {
+}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
index 33f2bd1848bdd2a938393ef26deae9dccee86198..9dc4fee1748e0c8e33462a14c48d0c31aeb99827
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-app/src/main/resources/application.properties
@@ -1 +1,2 @@
-spring.application.name=cart-app
+# Quarkus HTTP config (optional defaults)
+quarkus.http.port=8080
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
index 824cb4d7e40a35cbde8f0c6f8b590cf1ffe9fa75..db895738844d3c229c808809fccce4d6e7e9857e
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/pom.xml
@@ -19,9 +19,9 @@
 
     <dependencies>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
@@ -34,4 +34,13 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
index b3b274eb972cacb4c7fbf9a2d8da39e2e28515a3..fbd5e5a775b71bfc64c4caa77bc1fcaa776cf66c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java
@@ -1,29 +1,27 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
+import io.quarkus.runtime.QuarkusApplication;
+import io.quarkus.runtime.annotations.QuarkusMain;
+import io.quarkus.runtime.Quarkus;
+import jakarta.inject.Inject;
 
-@SpringBootApplication
-public class Application implements CommandLineRunner {
+@QuarkusMain
+public class Application implements QuarkusApplication {
 
-    private final CartClient cartClient;
-
-    public Application(CartClient cartClient) {
-        this.cartClient = cartClient;
-    }
+    @Inject
+    CartClient cartClient;
 
     public static void main(String[] args) {
-        SpringApplication.run(Application.class, args);
+        Quarkus.run(Application.class, args);
     }
 
     @Override
-    public void run(String... args) throws Exception {
+    public int run(String... args) throws Exception {
         try {
             cartClient.doCartOperations();
         } catch (Exception ex) {
             System.err.println("Caught a BookException: " + ex.getMessage());
         }
+        return 0;
     }
-
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
index 2fa43676238ad47937485f644e07b9f4b9d6944d..da7d5ff6ab2003899474138e9ba0d9a52b19664d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java
@@ -1,47 +1,54 @@
 package spring.examples.tutorial.cart;
 
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.apache.hc.client5.http.classic.methods.HttpDelete;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.classic.methods.HttpPost;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.StringEntity;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
 import java.util.List;
 
-@Component
+@ApplicationScoped
 public class CartClient {
 
-    private final String baseUrl;
-
-    public CartClient(@Value("${app.cart.url}") String baseUrl) {
-        this.baseUrl = baseUrl;
-    }
-
-    public void doCartOperations() {
-        SessionAwareRestTemplate sessionTemplate = new SessionAwareRestTemplate();
-        RestTemplate restTemplate = sessionTemplate.getRestTemplate();
-
-        restTemplate.postForEntity(baseUrl + "/initialize?person={person}&id={id}", null,
-                Void.class, "Duke d'Url", "123");
-
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Infinite Jest");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class, "Bel Canto");
-        restTemplate.postForEntity(baseUrl + "/add?title={title}", null, Void.class,
-                "Kafka on the Shore");
+    @ConfigProperty(name = "app.cart.url")
+    String baseUrl;
 
-        List<String> books = restTemplate.exchange(
-                baseUrl + "/contents",
-                HttpMethod.GET,
-                null,
-                new ParameterizedTypeReference<List<String>>() {}).getBody();
+    public void doCartOperations() throws Exception {
+        try (CloseableHttpClient client = HttpClients.createDefault()) {
+            HttpPost init = new HttpPost(baseUrl + "/initialize?person=" +
+                    encode("Duke d'Url") + "&id=123");
+            client.execute(init).close();
 
-        books.forEach(title -> System.out
-                .println("Retrieving book title from cart: " + title));
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Infinite Jest"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Bel Canto"))).close();
+            client.execute(new HttpPost(baseUrl + "/add?title=" + encode("Kafka on the Shore"))).close();
 
-        System.out.println("Removing \"Gravity's Rainbow\" from cart.");
-        restTemplate.delete(baseUrl + "/remove?title={title}", "Gravity's Rainbow");
+            HttpGet get = new HttpGet(baseUrl + "/contents");
+            var response = client.execute(get);
+            List<String> books = new ArrayList<>();
+            try (var entity = response.getEntity();
+                 var in = new BufferedReader(new InputStreamReader(entity.getContent()))) {
+                String line;
+                while ((line = in.readLine()) != null) {
+                    books.add(line);
+                }
+            }
+            books.forEach(title -> System.out.println("Retrieving book title from cart: " + title));
 
-        restTemplate.postForEntity(baseUrl + "/clear", null, Void.class);
+            System.out.println("Removing \"Gravity's Rainbow\" from cart.");
+            client.execute(new HttpDelete(baseUrl + "/remove?title=" + encode("Gravity's Rainbow"))).close();
+            client.execute(new HttpPost(baseUrl + "/clear")).close();
+        }
     }
 
+    private String encode(String s) {
+        return s.replace(" ", "%20").replace("'", "%27");
+    }
 }
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
deleted file mode 100644
index 902eaf6c8db27e5716ff8c113ba3397ed46668f5..0000000000000000000000000000000000000000
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package spring.examples.tutorial.cart;
-
-import org.apache.hc.client5.http.classic.HttpClient;
-import org.apache.hc.client5.http.cookie.BasicCookieStore;
-import org.apache.hc.client5.http.cookie.CookieStore;
-import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
-import org.springframework.web.client.RestTemplate;
-
-public class SessionAwareRestTemplate {
-
-    private RestTemplate restTemplate;
-    private CookieStore cookieStore;
-
-    public SessionAwareRestTemplate() {
-        this.cookieStore = new BasicCookieStore();
-
-        HttpClient httpClient = HttpClientBuilder.create()
-                .setDefaultCookieStore(cookieStore)
-                .build();
-
-        HttpComponentsClientHttpRequestFactory factory =
-                new HttpComponentsClientHttpRequestFactory(httpClient);
-
-        this.restTemplate = new RestTemplate(factory);
-    }
-
-    public RestTemplate getRestTemplate() {
-        return restTemplate;
-    }
-
-    public CookieStore getCookieStore() {
-        return cookieStore;
-    }
-}
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
index 776def4d1c1e8ae4df28daba99a23e939e319450..e6a6526de62a8648574f1156e168dea2604d9a95
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-appclient/src/main/resources/application.properties
@@ -1,8 +1,5 @@
-spring.application.name=cart-appclient
-# disable web server
-spring.main.web-application-type=none
+# Quarkus app config
+quarkus.application.name=cart-appclient
 
+# Base URL to cart app
 app.cart.url=http://localhost:8080/cart
-
-# logging.level.reactor.netty.http.client=DEBUG
-# logging.level.org.springframework.web.reactive.function.client.ExchangeFunctions=TRACE
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
index 3bc0cb2793f17f6c6b09e59561d60f24f6f359d1..e0411bd57db9674c4c8e0f1b5724a311b58fdf7c
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-common/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
     </dependencies>
 </project>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
index 01caff0928b4c43652218f20c22efd3c8f1e4530..21926dc5543be78d71539c7840004520816ca731
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/pom.xml
@@ -15,8 +15,8 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-context</artifactId>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
         </dependency>
 
         <dependency>
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
index f06c257fa483127039c1aed42e756ce2c90a0ae1..fd1df381016e303435190e725a54a06777e7403d
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java
@@ -1,17 +1,17 @@
 package spring.examples.tutorial.cart.service;
 
-import org.springframework.context.annotation.Scope;
-import org.springframework.context.annotation.ScopedProxyMode;
-import org.springframework.stereotype.Service;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.inject.Named;
 import spring.examples.tutorial.cart.common.BookException;
 import spring.examples.tutorial.cart.common.Cart;
 import spring.examples.tutorial.cart.common.IdVerifier;
 import java.util.ArrayList;
 import java.util.List;
+import java.io.Serializable;
 
-@Service
-@Scope(value = "session", proxyMode = ScopedProxyMode.TARGET_CLASS)
-public class CartServiceImpl implements Cart {
+@Named
+@SessionScoped
+public class CartServiceImpl implements Cart, Serializable {
 
     private String customerId;
     private String customerName;
diff --git a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
index 6b96e88cfe5308a5f04f2a00dae11807d5cc632e..5f3f8e85aa6b8b44dc6ab9f68ee8abc0dad8dc44
--- a/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
+++ b/agentic2/codex/business_domain/cart-spring-to-quarkus/run_1/pom.xml
@@ -12,8 +12,10 @@
     <properties>
         <java.version>17</java.version>
         <maven.compiler.release>17</maven.compiler.release>
-        <spring-boot.version>3.5.5</spring-boot.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
+        <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
+        <quarkus.platform.version>3.13.2</quarkus.platform.version>
     </properties>
 
     <modules>
@@ -26,9 +28,9 @@
     <dependencyManagement>
         <dependencies>
             <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
+                <groupId>${quarkus.platform.group-id}</groupId>
+                <artifactId>${quarkus.platform.artifact-id}</artifactId>
+                <version>${quarkus.platform.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -40,9 +42,10 @@
         <pluginManagement>
             <plugins>
                 <plugin>
-                    <groupId>org.springframework.boot</groupId>
-                    <artifactId>spring-boot-maven-plugin</artifactId>
-                    <version>${spring-boot.version}</version>
+                    <groupId>io.quarkus</groupId>
+                    <artifactId>quarkus-maven-plugin</artifactId>
+                    <version>${quarkus.platform.version}</version>
+                    <extensions>true</extensions>
                 </plugin>
             </plugins>
         </pluginManagement>

**Migration Summary**

I migrated the multi-module Spring Boot application to Quarkus. This included replacing the Spring BOM and plugins with the Quarkus platform BOM and `quarkus-maven-plugin`, swapping Spring dependencies for Quarkus equivalents, and refactoring server-side code from Spring MVC to JAX-RS with CDI. The client module was converted from Spring Boot to a Quarkus CLI app using `@QuarkusMain`, with HTTP calls performed via Apache HttpClient 5 and configuration via MicroProfile Config. A build attempt failed due to restricted network access preventing Maven from resolving Quarkus artifacts; the error and mitigation steps are documented.

**File Tree (modified/added/removed files)**

- Modified
  - pom.xml: Switched Spring Boot BOM to Quarkus BOM; pluginManagement updated to `quarkus-maven-plugin`.
  - cart-common/pom.xml: Replaced `spring-context` with `quarkus-arc`.
  - cart-service/pom.xml: Replaced `spring-context` with `quarkus-arc`.
  - cart-app/pom.xml: Replaced `spring-boot-starter-web` with `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`; added `quarkus-maven-plugin`.
  - cart-app/src/main/java/spring/examples/tutorial/cart/CartController.java: Spring MVC annotations -> JAX-RS + CDI.
  - cart-service/src/main/java/spring/examples/tutorial/cart/service/CartServiceImpl.java: Spring annotations -> CDI `@Named @SessionScoped`; implements `Serializable`.
  - cart-appclient/pom.xml: Removed Spring Boot web starter; added `quarkus-arc`; added `quarkus-maven-plugin`.
  - cart-appclient/src/main/java/spring/examples/tutorial/cart/Application.java: Spring Boot -> Quarkus `@QuarkusMain` CLI.
  - cart-appclient/src/main/java/spring/examples/tutorial/cart/CartClient.java: Spring RestTemplate -> Apache HttpClient; MicroProfile Config.
  - CHANGELOG.md: Added comprehensive migration log with timestamps and severities.
- Added
  - cart-app/src/main/resources/application.properties: Quarkus HTTP config.
  - cart-app/src/main/java/spring/examples/tutorial/cart/RestApplication.java: JAX-RS application class.
  - cart-appclient/src/main/resources/application.properties: Quarkus app config and `app.cart.url`.
- Removed
  - cart-appclient/src/main/java/spring/examples/tutorial/cart/SessionAwareRestTemplate.java: Spring-specific client helper.
  - cart-app/src/main/java/spring/examples/tutorial/cart/Application.java: Spring Boot application class (replaced by JAX-RS `RestApplication`).

**Step-by-Step Log**

- [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
  - Identified Spring Boot BOM, Spring web starter, Spring context, and Spring client usage.
- [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
  - Switched to Quarkus platform BOM and `quarkus-maven-plugin`.
- [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
  - Common/service: `spring-context` -> `quarkus-arc`; app: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`; client: removed Spring starter.
- [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
  - Controllers to JAX-RS; beans to CDI; client to Quarkus CLI.
- [2025-11-27T00:43:45Z] [info] Client cleanup and configs
  - Removed Spring helper; added Quarkus properties.
- [2025-11-27T00:44:10Z] [info] Build plugin configuration
  - Added `quarkus-maven-plugin` to server and client modules.
- [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
  - Maven cannot resolve Quarkus BOM; documented mitigations.

**CHANGELOG.md Contents**
```markdown
# Migration Changelog

## [2025-11-27T00:41:00Z] [info] Audit project and Spring usage
- Identified Spring Boot parent BOM, Spring web starter in `cart-app`, Spring context in `cart-common` and `cart-service`, and Spring client usage in `cart-appclient`.

## [2025-11-27T00:41:30Z] [info] Updated root BOM and plugins to Quarkus
- Replaced Spring Boot BOM with Quarkus BOM in `pom.xml`.
- Added `io.quarkus:quarkus-maven-plugin` to pluginManagement.

## [2025-11-27T00:42:30Z] [info] Replaced Spring dependencies with Quarkus
- `cart-common`: `spring-context` -> `quarkus-arc`.
- `cart-service`: `spring-context` -> `quarkus-arc`.
- `cart-app`: `spring-boot-starter-web` -> `quarkus-resteasy`, `quarkus-resteasy-jackson`, `quarkus-undertow`.
- `cart-appclient`: removed Spring Web starter, added `quarkus-arc` + `httpclient5`.

## [2025-11-27T00:43:15Z] [info] Refactored code to Quarkus APIs
- `CartServiceImpl`: `@Service` + Spring session scope -> `@Named @SessionScoped` (CDI); implements `Serializable`.
- `CartController`: Spring MVC annotations -> JAX-RS (`@Path`, `@GET/@POST/@DELETE`, `@QueryParam`) with `@Inject` Cart.
- `Application` (server): switched to JAX-RS `Application` class.
- `Application` (client): switched to `@QuarkusMain` with `QuarkusApplication` run method.
- `CartClient`: replaced Spring `RestTemplate` with Apache HttpClient 5; injected `app.cart.url` via MicroProfile Config.

## [2025-11-27T00:43:45Z] [info] Client cleanup and configs
- Removed Spring `SessionAwareRestTemplate` helper; replaced with Apache HttpClient 5 usage.
- Added Quarkus `application.properties` in `cart-app` and `cart-appclient`.

## [2025-11-27T00:44:10Z] [info] Build plugin configuration
- Added `quarkus-maven-plugin` to `cart-app` module.
- Added `quarkus-maven-plugin` to `cart-appclient` module.

## [2025-11-27T00:44:24Z] [error] Compilation failed due to restricted network
- Command: `mvn -q -Dmaven.repo.local=.m2repo clean package`
- Details: Maven could not resolve Quarkus BOM and dependencies because external network access is restricted.
- Impact: Build cannot complete without downloading Quarkus platform BOM and dependencies.
- Suggested Actions:
  - Re-run build with network enabled or a pre-populated local repo (`.m2repo`) containing Quarkus artifacts.
  - Alternatively, set up an internal Maven proxy/repository mirror accessible in this environment.
  - If offline compilation is required, vendor required jars into the repo using `systemPath` scope (not recommended for long-term).
```

**Error Handling**

- Non-resolvable import POM for `io.quarkus.platform:quarkus-bom:3.13.2`
  - Impact: Blocks dependency resolution; build fails at root project.
  - Mitigation:
    - Enable network access during build or pre-fill `.m2repo` with required Quarkus artifacts.
    - Configure Maven to use an internal mirror accessible in this environment (`settings.xml` with `<mirrors>`).
    - As a last resort, vendor jars in-repo with `systemPath` (not recommended).

Would you like me to configure a local Maven settings file to point to an internal mirror, or attempt an offline build using vendored artifacts if you provide them?
