build.yml

name: Java CI

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        # test against latest update of each major Java version, as well as specific updates of LTS versions:
        java: [ 8, 11, 17 ]
    name: Java ${{ matrix.java }} build
    steps:
      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      - name: Set up JDK ${{ matrix.java }}
        uses: actions/setup-java@9704b39bf258b59bc04b50fa2dd55e9ed76b47a8 # v4.1.0
        with:
          distribution: 'temurin' # See 'Supported distributions' for available options
          java-version: ${{ matrix.java }}
      - name: Cache Maven packages
        uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2 # v4.0.0
        with:
          path: ~/.m2
          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-m2          
      - name: Show Maven version
        run: mvn --version
      - name: Build with Maven
        run: mvn --batch-mode --update-snapshots verify