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https://issues.apache.org/jira/browse/NETBEANS-1584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16673472#comment-16673472
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Antonio Vieiro commented on NETBEANS-1584:
------------------------------------------

This hangs at

{{at com.sun.java.swing.plaf.gtk.GTKStyle.nativeGetClassValue(Native Method)}}

It seems this is related to some assistive technologies in the JDK. See 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798131 

A solution seems to be

     Edit
     /etc/java-8-openjdk/accessibility.properties
     and comment (add # to) the GNOME Atk Wrapper line:
     assistive_technologies=org.GNOME.Accessibility.AtkWrapper



> NB IDE Hangs when installing nb-javac on Linux
> ----------------------------------------------
>
>                 Key: NETBEANS-1584
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-1584
>             Project: NetBeans
>          Issue Type: Task
>          Components: ide - UI
>    Affects Versions: 10.0
>            Reporter: Antonio Vieiro
>            Assignee: Antonio Vieiro
>            Priority: Major
>         Attachments: netbeans-deadlock-screenthos.png, netbeans-deadlock.txt
>
>
> IDE hangs when installing nb-javac.
> I'm attating a thread-dump. the AWT-EventQueue thread is hung because there's 
> a lock in a NbDocument.
> I think this is a synchronization bug in Swing's GTK Plaf, that should be 
> reported to the JDK team.
> Attaching a thread dump and a screenshot.



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