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Set up your GitHub Actions workflow with a specific version of Java
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README.md

setup-java

GitHub Actions status

This action sets up a java environment for use in actions by:

  • optionally downloading and caching a requested version of java by version and adding to PATH. Default downloads are populated from the Zulu Community distribution of OpenJDK
  • registering problem matchers for error output

Usage

See action.yml

Basic:

steps:
- uses: actions/checkout@v1
- uses: actions/setup-java@v1
  with:
    java-version: '9.0.4' # The JDK version to make available on the path. Takes a whole or semver JDK version, or 1.x syntax (e.g. 1.8 => Jdk 8.x). To specify a specific version for JDK 8 or older use the following pattern (8.0.x)
    java-package: jdk # (jre, jdk, or jdk+fx) - defaults to jdk
    architecture: x64 # (x64 or x86) - defaults to x64
- run: java -cp java HelloWorldApp

From local file:

steps:
- uses: actions/checkout@v1
- uses: actions/setup-java@v1
  with:
    java-version: '4.0.0'
    architecture: x64
    jdkFile: <path to jdkFile> # Optional - jdkFile to install java from. Useful for versions not found on Zulu Community CDN
- run: java -cp java HelloWorldApp

Matrix Testing:

jobs:
  build:
    runs-on: ubuntu-16.04
    strategy:
      matrix:
        # test against latest update of each major Java version, as well as specific updates of LTS versions:
        java: [ 1.6, 6.0.83, 7, 7.0.181, 8, 8.0.192, 9.0,x, 10, 11.0.x, 11.0.3, 12, 13 ]
    name: Java ${{ matrix.java }} sample
    steps:
      - uses: actions/checkout@master
      - name: Setup java
        uses: actions/setup-java@v1
        with:
          java-version: ${{ matrix.java }}
      - run: java -cp java HelloWorldApp

Publising to an Apache Maven Repository:

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - name: Set up JDK 1.8
      uses: actions/setup-java@v1
      with:
        java-version: 1.8
        server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
        username: ${{ github.actor }} # username for server authentication
        password: ${{ github.token }} # password or token for authentication
    - name: Build with Maven
      run: mvn -B package --file pom.xml
    - name: Publish to GitHub Packages Apache Maven
      run: mvn deploy
    - name: Set up Apache Maven Central
      uses: actions/setup-java@v1
      with: # running setup-java again overwrites the settings.xml
        java-version: 1.8
        server-id: maven
        username: maven_username
        password: ${{ secrets.MAVEN_CENTRAL_TOKEN }} # password from secrets store
    - name: Publish to Apache Maven Central
      run: mvn deploy

See the help docs on Publishing a Package for more information on the pom.xml file.

License

The scripts and documentation in this project are released under the MIT License

Contributions

Contributions are welcome! See Contributor's Guide