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https://issues.apache.org/jira/browse/HIVE-498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711298#action_12711298
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Prasad Chakka commented on HIVE-498:
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isn't the check 'p == null' redundant since p is set to null and not modified
before this check?
> UDFRegExp NullPointerException on empty replacement string
> ----------------------------------------------------------
>
> Key: HIVE-498
> URL: https://issues.apache.org/jira/browse/HIVE-498
> Project: Hadoop Hive
> Issue Type: Bug
> Affects Versions: 0.4.0
> Reporter: Zheng Shao
> Assignee: Zheng Shao
> Attachments: HIVE-498.1.patch
>
>
> UDFRegExp, UDFRegExpReplace, UDFRegExpExtract will throw out
> NullPointerException if the replacement String is empty or pattern is empty
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