See <https://builds.apache.org/job/Tajo-master-jdk8-nightly/177/changes>
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Build failed in Jenkins: Tajo-master-jdk8-nightly #1... Apache Jenkins Server
- Jenkins build is back to normal : Tajo-master-jdk8-n... Apache Jenkins Server
