name: Maven

on: [push]

jobs:
  build:

    runs-on: ${{ matrix.os }}

    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest]

    steps:

      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Setup Maven caching
        uses: actions/cache@v2
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-

      - name: Setup JDK 11
        uses: actions/setup-java@v1
        with:
          java-version: 11
          java-package: jdk
          architecture: x64

      - name: Setup JDK 8
        uses: actions/setup-java@v1
        with:
          java-version: 8
          java-package: jdk
          architecture: x64

      - name: Inspect environment (Linux)
        if: runner.os == 'Linux'
        run: env | grep '^JAVA'

      - name: Build with Maven (Linux)
        if: runner.os == 'Linux'
        run: ./mvnw -V -B -e -DtrimStackTrace=false verify --global-toolchains .github/workflows/maven-toolchains.xml

      - name: Inspect environment (Windows)
        if: runner.os == 'Windows'
        run: set java

      - name: Build with Maven (Windows)
        if: runner.os == 'Windows'
        run: ./mvnw -V -B -e -DtrimStackTrace=false verify --global-toolchains ".github\workflows\maven-toolchains.xml"