name: Java CI with Maven

on:
  push:
    branches: [ "master" ]
  pull_request:
    branches: [ "master" ]

jobs:
  build:
    runs-on: ubuntu-latest
    container:
      image: maven:3.9.4-eclipse-temurin-21   # Maven + JDK 21 vorinstalliert

    steps:
      - uses: actions/checkout@v4

      - name: Build with Maven
        run: mvn -B package --file pom.xml