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https://issues.apache.org/jira/browse/SPARK-32631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17178680#comment-17178680
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Apache Spark commented on SPARK-32631:
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User 'tianhanhu' has created a pull request for this issue:
https://github.com/apache/spark/pull/29447
> Handle Null error message in hive ThriftServer UI
> -------------------------------------------------
>
> Key: SPARK-32631
> URL: https://issues.apache.org/jira/browse/SPARK-32631
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Tianhan Hu
> Priority: Major
>
> This fix is trying to prevent NullPointerException caused by Null error
> message by wrapping the message with Option and using getOrElse to handle
> Null value.
> The possible reason why the error message would be null is that java
> Throwable allows the detailMessage to be null. However, in the render code we
> assume that the error message would be be null and try to do indexOf() on the
> string. Therefore, if some exception doesn't set the error message, it would
> trigger NullPointerException in the hive ThriftServer UI.
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