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https://issues.apache.org/jira/browse/YARN-11846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Doe updated YARN-11846:
----------------------------
    Attachment: TestViolation.java

> Use before initialization for federationFacade 
> -----------------------------------------------
>
>                 Key: YARN-11846
>                 URL: https://issues.apache.org/jira/browse/YARN-11846
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 3.4.1
>            Reporter: John Doe
>            Priority: Major
>         Attachments: TestViolation.java
>
>
> If the function deleteFederationApplication() in FederationRMAdminInterceptor 
> executes earlier, it tries to invoke a member function of the instance 
> variable federationFacade, which is still Null now, and causes a  
> NullPointerException.



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