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https://issues.apache.org/jira/browse/HELIX-607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15674340#comment-15674340
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Lei Xia commented on HELIX-607:
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[~dasahcc] could you verify if this is still an issue?
> NPE while deleting a job from recurrent job queue
> -------------------------------------------------
>
> Key: HELIX-607
> URL: https://issues.apache.org/jira/browse/HELIX-607
> Project: Apache Helix
> Issue Type: Bug
> Reporter: Karthiek
> Assignee: Junkai Xue
>
> Steps to reproduce:
> - Create a recurrent job queue
> - Pause the queue
> - Add a job to the queue
> - Delete the job
> We hit a NullPointerException.
> java.lang.NullPointerException
> at org.apache.helix.task.TaskDriver.deleteJob(TaskDriver.java:300)
> TaskDriver expects WorkflowContext to be not null. But if the recurrent queue
> is not scheduled even once, WorkflowContext will be null. This case is
> handled in non-recurrent workflow, but not for recurrent ones.
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