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https://issues.apache.org/jira/browse/NETBEANS-5914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17397495#comment-17397495
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Neil C Smith commented on NETBEANS-5914:
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No, but all these seem to show a bunch of threads waiting to lock the same
ArrayList in DelegatingLookupImpl, and the thread that has that lock seems to
be waiting with or blocking the EDT.
I suspect that the call to setLookups(..) at
[https://github.com/apache/netbeans/blob/master/ide/projectapi/src/org/netbeans/spi/project/support/DelegatingLookupImpl.java#L168]
should be happening outside of the results lock, as that is going to cause a
bunch of notifications?
I wonder if [~jtulach] could take a look at this one?
> NetBeans 12.4 freezes on startup
> --------------------------------
>
> Key: NETBEANS-5914
> URL: https://issues.apache.org/jira/browse/NETBEANS-5914
> Project: NetBeans
> Issue Type: Bug
> Environment: NetBeans 12.4 on Zulu/OpenJDK 11 on Windows 10.
> Reporter: Eirik Bakke
> Priority: Major
> Attachments: 210506 NetBeans Deadlock on Startup 2.txt, 210506
> NetBeans Deadlock on Startup.txt, 210516 Another NetBeans Deadlock.txt,
> 210526 NetBeans Deadlock again.txt
>
>
> On NetBeans 12.4, I was previously experiencing some intermittent freezes on
> startup, at the time when projects were being loaded and such. I did some
> thread dumps of the frozen IDE using VisualVM. I'm uploading these now in
> case they are related to NETBEANS-5913.
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