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https://issues.apache.org/jira/browse/NETBEANS-5130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17272813#comment-17272813
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Netbeans User 2019 commented on NETBEANS-5130:
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It seems that most of strange issue like these are coming from nb-javac so I
have uninstalled as inactivation seems ignored. So I close this for now, but I
will a new issue that is connected gradle and new spring boot.
> Bigger projects during scanning present IDE error in notifications and
> present fake errors
> ------------------------------------------------------------------------------------------
>
> Key: NETBEANS-5130
> URL: https://issues.apache.org/jira/browse/NETBEANS-5130
> Project: NetBeans
> Issue Type: Bug
> Components: ide - UI, java - Editor, platform - Action Items,
> projects - Gradle
> Affects Versions: 12.2
> Environment: OpenJDK 11.0.2+
> Gradle 6.4.1, 6.7.1
> Reporter: Netbeans User 2019
> Assignee: Laszlo Kishalmi
> Priority: Critical
> Labels: gradle, performance
>
> Window > IDE Tools > Notifications
> Priority / Message / Date Created / Category
> Zz / unexpected Exception / 1 minutes ago / Error
> After click on link for reporting of issue and click to be shown details
> so there is only text: java.lang.NullPointerException
> Additionally it is seen that "Background scanning of projects..." takes
> really enormous amount of time on project with hundred of classes that ends
> with such fake errors and notification above.
> Some classes reports fake errors that it is not possible to fix by any of
> these ways:
> - close project and open
> - reload project
> - clean and build
> - scan for external changes
> - modification of file
> - creation new file in same folder and remove
> - removal of Apache Netbeans cache (under option --cachedir)
> - removal of caches/6.4.1 under gradle home
> So only way what helps:
> Opening step by step each such classes where such methods are implemented or
> to theirs return types of methods and so on and renaming such targeted
> classes that seems lead to an invocation of "Background scanning of
> projects..." on source file that leads to disappear such fake errors. Take to
> consideration also that some classes seems as they do not exist even in
> dialog for Type (CTRL+T).
> So I guess that it should be revised a "Background scanning of projects...".
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