See <https://builds.apache.org/job/kafka-trunk-jdk8/4512/display/redirect?page=changes>
- Build failed in Jenkins: kafka-trunk-jdk8 #4508 Apache Jenkins Server
- Build failed in Jenkins: kafka-trunk-jdk8 #4509 Apache Jenkins Server
- Build failed in Jenkins: kafka-trunk-jdk8 #... Apache Jenkins Server
- Build failed in Jenkins: kafka-trunk-jd... Apache Jenkins Server
- Jenkins build is back to normal : k... Apache Jenkins Server
