See <https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Spark/2890/display/redirect>
- Jenkins build became unstable: beam_PostCommit_Java... Apache Jenkins Server
- Jenkins build is still unstable: beam_PostCommi... Apache Jenkins Server
- Jenkins build is still unstable: beam_PostC... Apache Jenkins Server
- Build failed in Jenkins: beam_PostCommi... Apache Jenkins Server
- Jenkins build is back to normal : b... Apache Jenkins Server