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https://issues.apache.org/jira/browse/RANGER-4256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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chenyu updated RANGER-4256:
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Attachment: screenshot-1.png
> Empty string affects program operation
> --------------------------------------
>
> Key: RANGER-4256
> URL: https://issues.apache.org/jira/browse/RANGER-4256
> Project: Ranger
> Issue Type: Bug
> Components: plugins
> Affects Versions: 2.4.0
> Reporter: chenyu
> Assignee: chenyu
> Priority: Major
> Attachments: screenshot-1.png
>
>
> The situation of "userInput != null" cannot exclude "userInput == """.
> when the userInput equals "", the program will continue to execute.
> Therefore, to a certain extent, it affects performance and judgment
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