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devin-ai-integration[bot]lburgers
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feat: migrate from Java 8 to Java 11
- Upgrade Spring Boot from 2.0.2.RELEASE to 2.7.18 (latest 2.x LTS) - Update pom.xml: java.version=11, maven.compiler.release=11, UTF-8 encoding - Add maven-compiler-plugin 3.11.0, surefire 3.2.5, failsafe 3.2.5, enforcer 3.5.0 - Add spring-boot-starter-test dependency for testing - Update build.gradle: JavaVersion.VERSION_11, Spring Boot plugin 2.7.18 - Replace deprecated compile/testCompile with implementation/testImplementation - Add integration tests: ApplicationTests, TopicControllerTest, TopicServiceTest - Add GitHub Actions CI workflow with JDK 11 (Temurin) - Add MIGRATION_NOTES.md documenting all changes - Update README.md with JDK 11 prerequisites and build/test instructions - Add @Profile to skip external API CommandLineRunner during tests Co-Authored-By: Lukas Burger <lukaskburger@gmail.com>
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‎.github/workflows/ci.yml‎

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name: CI
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on:
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push:
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branches: [ main, 'devin/**' ]
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pull_request:
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branches: [ main ]
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Set up JDK 11
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uses: actions/setup-java@v4
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with:
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java-version: '11'
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distribution: 'temurin'
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cache: maven
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- name: Build and verify with Maven
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run: mvn -B clean verify
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- name: Run tests with Maven
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run: mvn -B test

‎MIGRATION_NOTES.md‎

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# Migration Notes: Java 8 → Java 11
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## Java Version Change
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- **Source**: Java 8 (1.8)
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- **Target**: Java 11
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Java 11 is a Long-Term Support (LTS) release that introduces improvements such as local-variable type inference (`var`), new String methods, HTTP Client API, and enhanced garbage collection. All existing Java 8 features (Streams, Lambdas, NIO, Optional, LocalDateTime) remain fully compatible.
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## Spring Boot Version Upgrade
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- **From**: Spring Boot 2.0.2.RELEASE
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- **To**: Spring Boot 2.7.18
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Spring Boot 2.7.x is the final 2.x LTS line and provides full Java 11 support, along with security patches, dependency updates, and improved auto-configuration.
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## Build Tool Changes
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### Maven (`pom.xml`)
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- `<java.version>` changed from `1.8` to `11`
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- Added `<maven.compiler.release>11</maven.compiler.release>`
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- Added `<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>`
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- Changed `<packaging>` from `pom` to `jar`
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- Spring Boot parent version updated to `2.7.18`
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### Gradle (`build.gradle`)
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- `sourceCompatibility` changed from `1.8` to `JavaVersion.VERSION_11`
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- `targetCompatibility` changed from `1.8` to `JavaVersion.VERSION_11`
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- Spring Boot Gradle plugin updated to `2.7.18`
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- Replaced deprecated `compile` configuration with `implementation`
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- Replaced deprecated `testCompile` configuration with `testImplementation`
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- Added `spring-boot-starter-jdbc` and `h2` dependencies to match Maven
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## Plugin Upgrades
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| Plugin | Version | Purpose |
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|--------|---------|---------|
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| `maven-compiler-plugin` | 3.11.0 | Compiles with `--release 11` flag |
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| `maven-surefire-plugin` | 3.2.5 | Runs unit tests |
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| `maven-failsafe-plugin` | 3.2.5 | Runs integration tests |
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| `maven-enforcer-plugin` | 3.5.0 | Enforces minimum Java 11 at build time |
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## New Test Coverage
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- **`ApplicationTests.java`**: Spring Boot integration test verifying the application context loads successfully.
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- **`TopicControllerTest.java`**: MockMvc-based tests for all REST endpoints (`GET /topic`, `POST /topic`, `PUT /topic/{id}`, `DELETE /topic/{id}`, `GET /`, `GET /datetime`, etc.).
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- **`TopicServiceTest.java`**: Unit tests for service-layer methods covering Stream operations, NIO file methods, String processing, sorting, and filtering.
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## CI Workflow Added
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A GitHub Actions CI workflow (`.github/workflows/ci.yml`) was added:
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- Triggers on push and pull request to `main`
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- Uses `actions/setup-java@v4` with Temurin JDK 11
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- Caches Maven dependencies
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- Runs `mvn -B clean verify` and `mvn -B test`

‎README.md‎

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# springboot-java8
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The project is made on spring boot. The project summarize the new features present in Java 8.
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The project is made on spring Boot. The project summarize the new features present in Java 8.
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It contain list of harcoded topics list. You can call the apis's with POSTMAN to add,delete,update Topic list
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In addition, it uses
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1) Java 8 NIO methods
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## Getting Started
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1) Download or clone the project with link
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(https://github.com/RehmanMuradAli/springboot-java8/)
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(https://github.com/COG-GTM/springboot-java8)
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## Prerequisites
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- **JDK 11** or later
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- **Maven 3.6+** or **Gradle 6+**
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- **POSTMAN** (optional, for API testing)
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## Build & Run
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### With Maven
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```bash
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mvn clean package
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mvn spring-boot:run
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```
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### With Gradle
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```bash
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./gradlew build
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./gradlew bootRun
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```
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The application starts on `http://localhost:8080` by default.
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## Running Tests
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### With Maven
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```bash
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mvn clean test
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```
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### With Gradle
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```bash
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./gradlew test
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```
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## Available API's
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### Prerequisites
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1) Java sdk
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2) POSTMAN
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### Installing
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```
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1) Download or clone
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2) Import the project
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3) Run on location machine
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4) Open Postman, to call API's ( localhost:8080 )
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```
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## Helpful Links
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Spring:
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## Authors
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* **Rehman Murad Ali**
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‎build.gradle‎

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mavenCentral()
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}
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dependencies {
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classpath("org.springframework.boot:spring-boot-gradle-plugin:2.0.2.RELEASE")
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classpath("org.springframework.boot:spring-boot-gradle-plugin:2.7.18")
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}
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}
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mavenCentral()
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}
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sourceCompatibility = 1.8
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targetCompatibility = 1.8
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sourceCompatibility = JavaVersion.VERSION_11
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targetCompatibility = JavaVersion.VERSION_11
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dependencies {
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compile("org.springframework.boot:spring-boot-starter-web")
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testCompile("junit:junit")
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implementation("org.springframework.boot:spring-boot-starter-web")
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implementation("org.springframework.boot:spring-boot-starter-jdbc")
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implementation("com.h2database:h2")
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testImplementation("org.springframework.boot:spring-boot-starter-test")
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}
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‎pom.xml‎

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<groupId>org.springframework</groupId>
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<artifactId>gs-spring-boot</artifactId>
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<packaging>pom</packaging>
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<packaging>jar</packaging>
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<version>0.1.0</version>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.0.2.RELEASE</version>
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<version>2.7.18</version>
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</parent>
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<dependencies>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<properties>
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<java.version>1.8</java.version>
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<java.version>11</java.version>
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<maven.compiler.release>11</maven.compiler.release>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.11.0</version>
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<configuration>
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<release>11</release>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>3.2.5</version>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-failsafe-plugin</artifactId>
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<version>3.2.5</version>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-enforcer-plugin</artifactId>
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<version>3.5.0</version>
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<executions>
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<execution>
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<id>enforce-java</id>
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<goals>
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<goal>enforce</goal>
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</goals>
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<configuration>
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<rules>
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<requireJavaVersion>
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<version>[11,)</version>
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</requireJavaVersion>
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</rules>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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‎src/main/java/hello/Application.java‎

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}
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@Bean
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@org.springframework.context.annotation.Profile("!test")
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public CommandLineRunner run(RestTemplate restTemplate) throws Exception {
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return args -> {
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Quote quote = restTemplate.getForObject(

‎src/test/java/hello/ApplicationTests.java‎

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package hello;
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import org.junit.jupiter.api.Test;
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import org.springframework.boot.test.context.SpringBootTest;
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@SpringBootTest
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class ApplicationTests {
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@Test
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void contextLoads() {
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}
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}

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