GitHub user egorklimov opened a pull request: https://github.com/apache/zeppelin/pull/3111
testCronDisable fixed ### What is this PR for? `testCronDisable` in `ZeppelinRestApiTest` produce error: ``` 09:15:51,001 ERROR org.quartz.core.ErrorLogger:2425 - Job (note.2DPJCQJGP threw an exception. org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: java.lang.NullPointerException] at org.quartz.core.JobRunShell.run(JobRunShell.java:213) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) Caused by: java.lang.NullPointerException at org.apache.zeppelin.notebook.Notebook$CronJob.execute(Notebook.java:925) at org.quartz.core.JobRunShell.run(JobRunShell.java:202) ... 1 more ``` Because cron job is not removed ### What type of PR is it? Bug Fix ### What is the Jira issue? * issue on Jira https://issues.apache.org/jira/browse/ZEPPELIN-3684 ### How should this be tested? * Tested manually * CI pass ### Questions: * Does the licenses files need update? No * Is there breaking changes for older versions? No * Does this needs documentation? No You can merge this pull request into a Git repository by running: $ git pull https://github.com/TinkoffCreditSystems/zeppelin ZEPPELIN-3684 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/zeppelin/pull/3111.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #3111 ---- commit 5abd8fbec740f9f6ba1ec060c44eba60098075a4 Author: egorklimov <klim.electronicmail@...> Date: 2018-08-06T11:39:25Z testCronDisable fixed ---- ---