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https://issues.apache.org/jira/browse/SPARK-16622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383902#comment-15383902
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Apache Spark commented on SPARK-16622:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/14259
> Fix NullPointerException when the returned value of the called method in
> Invoke is null
> ---------------------------------------------------------------------------------------
>
> Key: SPARK-16622
> URL: https://issues.apache.org/jira/browse/SPARK-16622
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Liang-Chi Hsieh
>
> Currently we don't check the value returned by called method in Invoke. When
> the returned value is null, NullPointerException will be thrown.
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