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https://issues.apache.org/jira/browse/NETBEANS-5037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17300437#comment-17300437
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Dr Bryan J Higgs edited comment on NETBEANS-5037 at 3/12/21, 6:04 PM:
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I downloaded NetBeans 12.3, and executed the command listed above:


 defaults write net.java.openjdk.cmd "AppleWindowTabbingMode" never


 and then tried running NetBeans. It came up, but when I clicked on (for 
example) Tools>Plugins, up comes a large window (not a dialog), and the entire 
NetBeans UI locks up. Even the Netbeans menu is unresponsive.

So, I tried the above recommendation 
([https://www.catalinaosx.com/how-to-fix-permissions-issue-on-catalina-osx/)|https://www.catalinaosx.com/how-to-fix-permissions-issue-on-catalina-osx/]

although I'm running on macOS Big Sur (Version 11.2.3 – the latest). I ran it 
as suggested in a Terminal, and it took a while but completed successfully. (It 
didn't say whether it actually made any changes)

Unfortunately, that made no difference, either. Plugins still hangs.

So, I created a new non-administrator user account (my account is an 
administrator), and tried to run NetBeans 12.3 from there. It worked, and 
plugins did not cause the entire NetBeans GUI to freeze.


was (Author: bryanhiggs):
I downloaded NetBeans 12.3, and executed the above command:
 defaults write net.java.openjdk.cmd "AppleWindowTabbingMode" never
 and then tried running NetBeans. It came up, but when I clicked on (for 
example) Tools>Plugins, up comes a large window (not a dialog), and the entire 
NetBeans UI locks up. Even the Netbeans menu is unresponsive.

So, I tried the above recommendation 
([https://www.catalinaosx.com/how-to-fix-permissions-issue-on-catalina-osx/)|https://www.catalinaosx.com/how-to-fix-permissions-issue-on-catalina-osx/]

although I'm running on macOS Big Sur (Version 11.2.3 – the latest). I ran it 
as suggested in a Terminal, and it took a while but completed successfully. (It 
didn't say whether it actually made any changes)

Unfortunately, that made no difference, either. Plugins still hangs.

So, I created a new non-administrator user account (my account is an 
administrator), and tried to run NetBeans 12.3 from there. It worked, and 
plugins did not cause the entire NetBeans GUI to freeze.

> NetBeans dialog windows in Big Sur
> ----------------------------------
>
>                 Key: NETBEANS-5037
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-5037
>             Project: NetBeans
>          Issue Type: Bug
>          Components: editor - Search, editor - Settings, platform - Plugin 
> Manager
>    Affects Versions: 8.2, 12.0, 11.1, 11.3, 12.1, 12.2
>         Environment: macOS 11.0.2
>            Reporter: Donatello Santoro
>            Priority: Major
>         Attachments: netbeans.conf, settings.png
>
>
> In macOS Big Sur some NetBeans panels (settings and find in project) are 
> broken:
>  * they are shown in full screen, as tab, please see screenshot 
>  * when they are shown, NB completely hangs, with high CPU usage.
> I tried almost every version of NetBeans (from 8.2 to 12.2rc) with every JDK 
> (1.8, 11, 13, 15), with the same behavior.
> The only way I have to solve the issue is to run NB as sudo
> {code:java}
> sudo /Applications/NetBeans/Apache\ NetBeans\ 12.1.app/Contents/MacOS/netbeans
> {code}
> Of course this is a permission related issue, but it appears only on 
> NetBeans. Other Java apps seems not affected. On command line there are no 
> evidence of the crash.
> Finally, in our office we are 4 with the same MacBook, and same macOS (just 
> upgraded from Catalina to Big Sur). 2 out of 4 have this issue. The other 2 
> can run NB without the sudo command.



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