image: ubuntu:focal

before_script:
  - apt-get update
  - apt-get -y install ${JDK_PACKAGE}
  - apt-get -y install gradle

after_script:
  - gradle --version

build:
  parallel:
    matrix:
      - JDK_PACKAGE: [ openjdk-8-jdk, openjdk-11-jdk ]
  script:
    - gradle build --stacktrace