See <https://builds.apache.org/job/zookeeper-master-maven/634/display/redirect?page=changes>
- Build failed in Jenkins: zookeeper-master-maven #632 Apache Jenkins Server
- Jenkins build is unstable: zookeeper-master-mav... Apache Jenkins Server
- Jenkins build is still unstable: zookeeper-... Apache Jenkins Server
- Jenkins build is back to stable : zooke... Apache Jenkins Server
