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https://issues.apache.org/jira/browse/NIFI-1643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard resolved NIFI-1643.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.0.0

> FlowFileHandlingException should extend RuntimeException
> --------------------------------------------------------
>
>                 Key: NIFI-1643
>                 URL: https://issues.apache.org/jira/browse/NIFI-1643
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 0.5.1
>            Reporter: Michael Moser
>            Priority: Minor
>             Fix For: 1.0.0
>
>
> Looking at nifi-api in org.apache.nifi.processor.exceptions, I see that 
> FlowFileAccessException and MissingFlowFileException extend RuntimeException. 
>  But FlowFileHandlingException extends ProcessException.
> Should FlowFileHandlingException extend RuntimeException like the others?
> I ask because the latest best practice for try-catch handling of exceptions 
> thrown from ProcessSession inside onTrigger() is to catch ProcessException.  
> This allows the exceptions mentioned above to escape an onTrigger() to be 
> handled in the framework (which usually rolls back the session).



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