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https://issues.apache.org/jira/browse/NETBEANS-4460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17499536#comment-17499536
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Junhao Liao commented on NETBEANS-4460:
---------------------------------------
[~lkishalmi] Thanks for your response! I agree fixing it in the C/C++ module
will be the easiest. However, the module is no longer maintained since NetBeans
8.2.
Upon further investigation, I found the exception was raised because the return
type of
`[image2Icon|https://github.com/apache/netbeans/blob/3dfe01225c66a7b6438801621b4d111f946e64b5/platform/openide.util.ui/src/org/openide/util/ImageUtilities.java#L248]`
was changed from `ImageIcon` to `TooltipImage`. While the comments explain
that the change means to utilize tweaks in rendering icons on HiDPI screens,
the change is a little awkward. The method name suggest it converts an image to
an icon, but in the end an `Image` is returned.
Is there any chance you can change the return type back? If the fix in NetBeans
is too much hassle, I can try to fix the C/C++ module and use my own copy.
Thanks in advance!
Working code from 2018:
https://github.com/apache/netbeans/blob/3dfe01225c66a7b6438801621b4d111f946e64b5/platform/openide.util.ui/src/org/openide/util/ImageUtilities.java#L248
Current code:
https://github.com/apache/netbeans/blob/ee2ceb2cbdad2ef5c05691c02116f31ea345a7ab/platform/openide.util.ui/src/org/openide/util/ImageUtilities.java#L324
> C++ Code Completion not working
> -------------------------------
>
> Key: NETBEANS-4460
> URL: https://issues.apache.org/jira/browse/NETBEANS-4460
> Project: NetBeans
> Issue Type: Bug
> Components: cnd - Code Completion
> Affects Versions: 12.0, 11.2, 11.3
> Environment: Windows 10, msys64
> Reporter: Holger Weber
> Priority: Major
>
> Sometimes the Code Completion doesn't work. So creating a derived class and
> try to auto complete a constructor just shows "Please wait.." tool tip and a
> notification is created.
> Part of Log:
> SEVERE [org.openide.util.RequestProcessor]: Error in RequestProcessor
> org.netbeans.spi.editor.completion.support.AsyncCompletionTask
> java.lang.ClassCastException: org.openide.util.ImageUtilities$ToolTipImage
> cannot be cast to java.desktop/javax.swing.ImageIcon
> at
> org.netbeans.modules.cnd.refactoring.completion.overridemethod.CsmOverrideMethodCompletionItem.<init>(CsmOverrideMethodCompletionItem.java:112)
> at
> org.netbeans.modules.cnd.refactoring.completion.overridemethod.CsmOverrideMethodCompletionItem.createImplementItem(CsmOverrideMethodCompletionItem.java:139)
> at
> org.netbeans.modules.cnd.refactoring.completion.overridemethod.CsmOverrideMethodCompletionProvider$Query.getItems(CsmOverrideMethodCompletionProvider.java:242)
> at
> org.netbeans.modules.cnd.refactoring.completion.overridemethod.CsmOverrideMethodCompletionProvider$Query.query(CsmOverrideMethodCompletionProvider.java:125)
> at
> org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:198)
> at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
> at
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
> at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
> [catch] at
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
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