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Posted to dev@flink.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2020/04/07 06:20:00 UTC

[jira] [Created] (FLINK-17015) Fix NPE from NullAwareMapIterator

Jark Wu created FLINK-17015:
-------------------------------

             Summary: Fix NPE from NullAwareMapIterator
                 Key: FLINK-17015
                 URL: https://issues.apache.org/jira/browse/FLINK-17015
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
            Reporter: Jark Wu
         Attachments: 92164295_3052056384855585_3776552648744894464_o.jpg

When using Heap statebackend, the underlying {{org.apache.flink.runtime.state.heap.HeapMapState#iterator}} may return a null iterator. It results in the {{NullAwareMapIterator}} holds a null iterator and throws NPE in the following {{NullAwareMapIterator#hasNext}} invocking. 



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