See <https://builds.apache.org/job/Blur-master-jdk7/org.apache.blur$blur-mapred/1714/changes>
- Jenkins build became unstable: Blur-master-jdk7 » B... Apache Jenkins Server
- Jenkins build is still unstable: Blur-master-jd... Apache Jenkins Server
- Jenkins build is back to stable : Blur-mast... Apache Jenkins Server
