See <https://builds.apache.org/job/Tajo-master-build/898/>
- Build failed in Jenkins: Tajo-master-build #893 Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-build #894 Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-build ... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-bu... Apache Jenkins Server
- Build failed in Jenkins: Tajo-maste... Apache Jenkins Server
- Jenkins build is back to norma... Apache Jenkins Server
