See <https://builds.apache.org/job/Hama-Nightly/795/changes>
- Build failed in Jenkins: Hama-Nightly #789 Apache Jenkins Server
- Build failed in Jenkins: Hama-Nightly #790 Apache Jenkins Server
- Build failed in Jenkins: Hama-Nightly #791 Apache Jenkins Server
- Build failed in Jenkins: Hama-Nightly #... Apache Jenkins Server
- Build failed in Jenkins: Hama-Night... Apache Jenkins Server
- Build failed in Jenkins: Hama-... Apache Jenkins Server
- Jenkins build is back to n... Apache Jenkins Server
