pull_request.yml

name: PR Build

on: 
  push:
    branches:
      - '!master'
  pull_request:
    branches:
      - master

permissions:
  contents: read # to fetch code (actions/checkout)

jobs:
  testopenjdk:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        # Linux and Windows only (MacOS is quite close to Linux, so less of a risk)
        os: [ubuntu-latest, windows-latest]
        java: [17, 21]
      fail-fast: false
      max-parallel: 4
    name: Test JDK ${{ matrix.java }}, ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v4
      - name: Set up JDK
        uses: actions/setup-java@v4
        with:
          distribution: 'oracle'
          java-version: ${{ matrix.java }}
      - name: Build, test and integration test
        run: mvn verify --no-transfer-progress

  # Note that 11 is not available in openjdk. So we need to do it with the Zulu distribution (see https://github.com/actions/setup-java)
  # When we drop 11, it will be safe to drop the copy-pasted workflow excerpt below
  testzulu:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        # We do one OS only to reduce resource utilization. To do macOS to this would be needed:
        #os: [ubuntu-20.04, macOS-latest]
        os: [ubuntu-latest]
        java: [11]
      fail-fast: false
      max-parallel: 4
    name: Test JDK ${{ matrix.java }}, ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v4
      - name: Set up JDK
        uses: actions/setup-java@v4
        with:
          distribution: 'zulu'
          java-version: ${{ matrix.java }}
      - name: Build, test and integration test
        run: mvn verify --no-transfer-progress