See <https://builds.apache.org/job/Tajo-master-build/769/changes>
- Build failed in Jenkins: Tajo-master-build #766 Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-build #767 Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-build ... Apache Jenkins Server
- Jenkins build is back to normal : Tajo-... Apache Jenkins Server
