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https://issues.apache.org/jira/browse/NIFI-8014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17232856#comment-17232856
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Joe Witt commented on NIFI-8014:
--------------------------------

You should be able to get the detailed/full stack trace from the logs.  If not 
it will help considerably for you to type in the top few lines of the error as 
you see them in the bulletin or whatever you're looking at.

> ExecuteSQLRecord chrashes if no resultset
> -----------------------------------------
>
>                 Key: NIFI-8014
>                 URL: https://issues.apache.org/jira/browse/NIFI-8014
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.12.1
>            Reporter: Michal Šunka
>            Priority: Major
>
> If in ExecuteSQLRecord I has code which does not return a resultset e.g.
>  
> {code:java}
> DECLARE @a int
> SET @a = 1
> {code}
> It fails with NullPointerException.
>  
> I cannot give You exact error string since it is not selectable (handy, isn´t 
> it?)...
> And picture-upload as attachment fails with "Jira could not attach the file 
> as there was a missing token. Please try attaching the file again." Repeated 
> attempts, drag'n'drop nor browse does not work... 
> !NiFi_NullPointerException.jpg!



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