ci-build.yml

name: Build
on: [push, pull_request]
jobs:
  build:
    name: (JDK ${{ matrix.jdk }} / ${{ matrix.os }}) Build
    env:
      MAVEN_OPTS: -XX:+IgnoreUnrecognizedVMOptions --illegal-access=debug -XX:StartFlightRecording=maxsize=5g,disk=true,dumponexit=true,settings=default,filename=./
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, windows-latest, macOS-latest]
        jdk: ['8', '11']
        include:
          - os: ubuntu-latest
            jdk: '16'
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v2
      - name: Set up JDK ${{ matrix.jdk }}
        uses: actions/setup-java@v2
        with:
          distribution: temurin
          java-version: ${{ matrix.jdk }}
      - name: Cache Maven packages
        uses: actions/cache@v2
        with:
          path: ~/.m2
          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-m2
# NOTE(AR) The `-T 2C` enables multi-threaded builds below, faster, but may need to be disabled when diagnosing problems 
# NOTE(DP): Reuse of build artefacts across workflows to (hopefully) limit network traffic
      - name: Maven Build
        run: mvn -V -B -q -T 2C -DskipTests=true "-Dmaven.javadoc.skip=true" install
        continue-on-error: ${{ matrix.jdk == '16' }}