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https://issues.apache.org/jira/browse/NETBEANS-5088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17243621#comment-17243621
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Dyorgio Nascimento commented on NETBEANS-5088:
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I can confirm that NB 12.1 freeze with macOS Big Sur.
To reproduce is very easy, start a debug in a test class with main, include a
break point, end create a watch.
If you try to edit it opening a dialog (not directly on table): freeze.
I tested with jdk 11 and 14, same result.
I attached macOs thread dump, and make some investigations on NB classes... my
guess is in this line:
[https://github.com/apache/netbeans/blob/04597fcc27ad0546a5d9a71b99d762609b998751/platform/core.windows/src/org/netbeans/core/windows/services/DialogDisplayerImpl.java#L94]
Something in macOS Big Sur is not compatible with NB Mutex logics.
> Dialogs cause IDE freeze on MacOS Big Sur
> -----------------------------------------
>
> Key: NETBEANS-5088
> URL: https://issues.apache.org/jira/browse/NETBEANS-5088
> Project: NetBeans
> Issue Type: Bug
> Affects Versions: 12.1
> Environment: MacOS 11.0.1 (BigSur).
> 2.9 GHz Intel i9
> Reporter: Juan F Arjona
> Priority: Blocker
> Attachments: Captura de Tela 2020-12-03 às 22.11.21.png, dump.txt
>
>
> Running on Mac OS Big Sur, every time I open a dialog (configuration, usages,
> etc) the new window becomes a tab in the main window and the whole
> application starts flashing and becomes irresponsive. The only way to stop
> it is to kill the process.
> Tried on the JDKs:
> Amazon-Correto (8, 15), openJDK (11, 14 and 15), Oracle JDK (11, 14, 15),
> zulu (8, 15) and adoptjdk (both J9 and hotspot 8 and 15). Issue happens
> using the laptop alone or with dual screens.
> This bug is also affecting the netbeans-based applications, such as Oracle
> Data Modeller.
> Help !
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