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@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
      - name: Set up JDK ${{ matrix.java }}
        uses: actions/setup-java@b36c23c0d998641eff861008f374ee103c25ac73 # v4.4.0
        with:
          distribution: 'temurin' # See 'Supported distributions' for available options
          java-version: ${{ matrix.java }}
      - name: Cache Maven packages
        uses: actions/cache@2cdf405574d6ef1f33a1d12acccd3ae82f47b3f2 # v4.1.0
        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