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https://issues.apache.org/jira/browse/DERBY-6322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13753499#comment-13753499
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Knut Anders Hatlen commented on DERBY-6322:
-------------------------------------------

Might be a bug in NetBeans 7.4 beta. At least, I don't see the warning in the 
latest development build of NetBeans. In any case, I think the suggested change 
is an improvement, as I'm not very fond of prefixing fields with "super" unless 
there actually is an ambiguity. So +1 from me.
                
> Remove erreoneous warning in NetBeans: superfluous use of super to access 
> inherited member variable
> ---------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-6322
>                 URL: https://issues.apache.org/jira/browse/DERBY-6322
>             Project: Derby
>          Issue Type: Improvement
>          Components: Build tools
>            Reporter: Dag H. Wanvik
>            Assignee: Dag H. Wanvik
>            Priority: Minor
>         Attachments: derby-6322.diff
>
>
> This code in SortBufferScan makes NetBeans (7.4beta) issue a warning:
> return (super.current != null);
> "Incompatible types: boolean is not a functional interface <identifier 
> expected> 
> ; expected"

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