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https://issues.apache.org/jira/browse/HIVE-19075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16425201#comment-16425201
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Marta Kuczora commented on HIVE-19075:
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Rebasing the patch as got conflicts in the TestDatabases file.
> Fix NPE when trying to drop or get DB with null name
> ----------------------------------------------------
>
> Key: HIVE-19075
> URL: https://issues.apache.org/jira/browse/HIVE-19075
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Reporter: Marta Kuczora
> Assignee: Marta Kuczora
> Priority: Minor
> Attachments: HIVE-19075.1.patch, HIVE-19075.2.patch,
> HIVE-19075.3.patch
>
>
> The TestDatabases tests revealed that NPE is thrown if the get_database_core
> and drop_database_core methods are called with null DB name. These NPEs could
> be prevented with a simple null check and a MetaException with a proper error
> message should be thrown instead.
> Example: NPE is thrown in the following test cases
> * TestDatabases.testGetDatabaseNullName
> * TestDatabases.testDropDatabaseNullName
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