NullPointerException when Selecting the User from the User Picker
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
Selecting users from the user picker throws a NullPointerException:
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ERROR [500ErrorPage] Exception caught in 500 page java.lang.NullPointerException
java.lang.RuntimeException: java.lang.NullPointerException
at com.atlassian.jira.web.action.admin.user.UserPickerBrowser.getBrowsableItems(UserPickerBrowser.java:112)
at com.atlassian.jira.web.action.admin.user.UserPickerBrowser.doExecute(UserPickerBrowser.java:62)
Cause
There are some users with null usernames in the database.
Resolution
Delete those users with NULL username in database:
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DELETE FROM userbase WHERE id=<user_id>;
Make sure to take a sql dump or XML backup before making any changes to the database.
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