See <https://builds.apache.org/job/River-trunk-jdk8/changes>
- Build failed in Jenkins: River-trunk-jdk6 #663 Apache Jenkins Server
- Build failed in Jenkins: River-trunk-jdk8 #664 Apache Jenkins Server
- Jenkins build is unstable: River-trunk-jdk8... Apache Jenkins Server
- Jenkins build is still unstable: River-... Apache Jenkins Server
- Jenkins build is still unstable: Ri... Apache Jenkins Server
- Jenkins build is back to stabl... Apache Jenkins Server