See <https://builds.apache.org/job/Blur-master-jdk7/1821/changes>
- Jenkins build became unstable: Blur-master-jdk7 #18... Apache Jenkins Server
- Jenkins build is still unstable: Blur-master-jd... Apache Jenkins Server
- Jenkins build is still unstable: Blur-maste... Apache Jenkins Server
- Jenkins build is back to stable : Blur-... Apache Jenkins Server
