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https://issues.apache.org/jira/browse/HIVE-9301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14268580#comment-14268580
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Ted Yu commented on HIVE-9301:
------------------------------
I stepped through similar code in debugger - the single ampersand prevents
short circuit evaluation of the expression, leading to NPE.
> Potential null dereference in MoveTask#createTargetPath()
> ---------------------------------------------------------
>
> Key: HIVE-9301
> URL: https://issues.apache.org/jira/browse/HIVE-9301
> Project: Hive
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: HIVE-9301.patch
>
>
> {code}
> if (mkDirPath != null & !fs.exists(mkDirPath)) {
> {code}
> '&&' should be used instead of single ampersand.
> If mkDirPath is null, fs.exists() would still be called - resulting in NPE.
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