See <https://sparktc.ibmcloud.com/jenkins/job/SystemML-DailyTest/1598/display/redirect?page=changes>
- Jenkins build became unstable: SystemML-DailyTest #1595 jenkins
- Jenkins build is still unstable: SystemML-DailyTest #1596 jenkins
- Jenkins build is still unstable: SystemML-DailyTest #1597 jenkins
- Jenkins build is back to stable : SystemML-DailyTest ... jenkins