See <https://builds.apache.org/job/kafka-2.1-jdk8/89/display/redirect?page=changes>
- Build failed in Jenkins: kafka-2.1-jdk8 #85 Apache Jenkins Server
- Build failed in Jenkins: kafka-2.1-jdk8 #86 Apache Jenkins Server
- Build failed in Jenkins: kafka-2.1-jdk8 #87 Apache Jenkins Server
- Build failed in Jenkins: kafka-2.1-jdk8... Apache Jenkins Server
- Jenkins build is back to normal : k... Apache Jenkins Server
