See <https://builds.apache.org/job/kafka-trunk-jdk8/539/changes>
- Build failed in Jenkins: kafka-trunk-jdk8 #534 Apache Jenkins Server
- Build failed in Jenkins: kafka-trunk-jdk8 #535 Apache Jenkins Server
- Build failed in Jenkins: kafka-trunk-jdk8 #... Apache Jenkins Server
- Build failed in Jenkins: kafka-trunk-jd... Apache Jenkins Server
- Build failed in Jenkins: kafka-trun... Apache Jenkins Server
- Jenkins build is back to norma... Apache Jenkins Server
