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https://issues.apache.org/jira/browse/KNOX-2783?focusedWorklogId=800534&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-800534
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ASF GitHub Bot logged work on KNOX-2783:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 15/Aug/22 09:27
            Start Date: 15/Aug/22 09:27
    Worklog Time Spent: 10m 
      Work Description: zeroflag merged PR #611:
URL: https://github.com/apache/knox/pull/611




Issue Time Tracking
-------------------

    Worklog Id:     (was: 800534)
    Time Spent: 20m  (was: 10m)

> User can be mapped to an empty virtual group
> --------------------------------------------
>
>                 Key: KNOX-2783
>                 URL: https://issues.apache.org/jira/browse/KNOX-2783
>             Project: Apache Knox
>          Issue Type: Improvement
>            Reporter: Attila Magyar
>            Assignee: Attila Magyar
>            Priority: Minor
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> If there is no group name after the dot, the user is getting mapped to an "" 
> group.
> {code}
> <provider>
>          <role>identity-assertion</role>
>          <name>HadoopGroupProvider</name>
>          <enabled>true</enabled>
>          <param>
>             <name>hadoop.security.group.mapping</name>
>             
> <value>org.apache.hadoop.security.ShellBasedUnixGroupsMapping</value>
>         </param>
>         <param>
>             <name>group.mapping.</name>
>             <value>true</value>
>         </param>
>       </provider>
> {code}



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