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Posted to issues@flink.apache.org by "vinoyang (JIRA)" <ji...@apache.org> on 2018/07/04 11:11:00 UTC

[jira] [Assigned] (FLINK-9736) Potential null reference in KeyGroupPartitionedPriorityQueue#poll()

     [ https://issues.apache.org/jira/browse/FLINK-9736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

vinoyang reassigned FLINK-9736:
-------------------------------

    Assignee: vinoyang

> Potential null reference in KeyGroupPartitionedPriorityQueue#poll()
> -------------------------------------------------------------------
>
>                 Key: FLINK-9736
>                 URL: https://issues.apache.org/jira/browse/FLINK-9736
>             Project: Flink
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: vinoyang
>            Priority: Minor
>
> {code}
>     final PQ headList = heapOfkeyGroupedHeaps.peek();
>     final T head = headList.poll();
> {code}
> {{peek}} call may return null.
> The return value should be checked before de-referencing.



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