language: java
cache:
  directories:
    - $HOME/.m2
script:
  - mvn verify -B -P integration-test

matrix:
  include:
  - jdk: openjdk8
  - jdk: oraclejdk9
    before_install:
        # The OpenJDK9's CA bundle is outdated, so we're using the system's ones.
        - rm "${JAVA_HOME}/lib/security/cacerts"
        - ln -s /etc/ssl/certs/java/cacerts "${JAVA_HOME}/lib/security/cacerts"
  - jdk: openjdk11
  - jdk: openjdk12