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https://issues.apache.org/jira/browse/NETBEANS-373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16459629#comment-16459629
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Geertjan Wielenga commented on NETBEANS-373:
--------------------------------------------
I think [~timboudreau] has the most recent analysis of the way forward here:
{quote}The bug is really in the JDK. Here we just need to find an effective
workaround. In this case, replanning the listener add to the event thread will
do the job - we just need to verify what the actual code path and target
component that's triggering the deadlock is.
Most likely it is the accessible component created by the dialog, simply
because there is a decent chance of another thread getting hold of the dialog
thanks to the native peer being assigned when pack() is called.{quote}
> Netbeans sometimes freezes when showing any refactor dialog when running with
> jdk 1.8.0_152-b16 or later
> --------------------------------------------------------------------------------------------------------
>
> Key: NETBEANS-373
> URL: https://issues.apache.org/jira/browse/NETBEANS-373
> Project: NetBeans
> Issue Type: Bug
> Components: java - Refactoring
> Affects Versions: 8.2, 9.0
> Environment: Mac
> Reporter: Austin Stephens
> Priority: Blocker
> Fix For: 9.0
>
> Attachments: Screen Shot 2018-04-02 at 11.22.11 AM.png, Screen Shot
> 2018-04-02 at 11.23.15 AM.png, nbpresenter.diff
>
>
> Sometimes (or almost always), when you try to do some refactor action,
> NetBeans freezes. It appears that a lock is obtained on a panel when the
> dialog is shown, and the AppKit Thread tries to get the lock while trying to
> add an accessible listener to it.
> AppKit Thread:
> {code:java}
> Container.addContainerListener:2142
> Container$AccessibleAWTContainer.addPropertyChangeListener:3885
> JComponent$AccessibleJComponent.addPropertyChangeListener:3765
> Hidden Source Calls
> CAccessible.addNotificationListeners:102
> CAccessible.<init>:84
> CAccessible.getCAccessible:60
> {code}
> EDT Thread:
> {code:java}
> Hidden Source Calls
> Unsafe.park
> LockSupport.park:194
> AbstractQueuedSynchronizer$ConditionObject.await:2062
> EventQueue.getNextEvent:557
> EventDispatchThread.pumpOneEventForFilters:173
> EventDispatchThread.pumpEventsForFilter:124
> EventDispatchThread.pumpEventsForFilter:117
> WaitDispatchSupport$2.run:190
> WaitDispatchSupport$4.run:235
> WaitDispatchSupport$4.run:233
> AccessController.doPrivileged
> WaitDispatchSupport.enter:233
> Dialog.show:1070
> NbPresenter.superShow:1060
> NbPresenter.doShow:1110
> NbPresenter.run:1082
> NbPresenter.run:105
> NbMutexEventProvider$Event.doEventAccess:115
> NbMutexEventProvider$Event.readAccess:75
> LazyMutexImplementation.readAccess:71
> Mutex.readAccess:193
> NbPresenter.show:1067
> Component.show:1669
> Component.setVisible:1616
> Window.setVisible:1017
> Dialog.setVisible:1005
> ParametersPanel.showDialog:674
> RefactoringPanel.refresh:660
> RefactoringPanel.<init>:144
> UI.openRefactoringUI:61
> ContextAnalyzer$4.show:648
> ContextAnalyzer$TextComponentTask.run:369
> RefactoringActionsProvider.doFindUsages:232
> ActionsImplementationFactory.doFindUsages:91
> WhereUsedAction.performAction:52
> RefactoringGlobalAction$ContextAction.actionPerformed:172
> TopComponent.processKeyBinding:1151
> JComponent.processKeyBindings:2963
> JComponent.processKeyEvent:2863
> Component.processEvent:6355
> Container.processEvent:2259
> Component.dispatchEventImpl:4961
> Container.dispatchEventImpl:2317
> Component.dispatchEvent:4793
> KeyboardFocusManager.redispatchEvent:1955
> DefaultKeyboardFocusManager.dispatchKeyEvent:827
> DefaultKeyboardFocusManager.preDispatchKeyEvent:1096
> DefaultKeyboardFocusManager.typeAheadAssertions:966
> DefaultKeyboardFocusManager.dispatchEvent:792
> Component.dispatchEventImpl:4842
> Container.dispatchEventImpl:2317
> Window.dispatchEventImpl:2758
> Component.dispatchEvent:4793
> EventQueue.dispatchEventImpl:766
> EventQueue.access$500:97
> EventQueue$3.run:717
> EventQueue$3.run:711
> AccessController.doPrivileged
> ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege:89
> ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege:99
> EventQueue$4.run:739
> EventQueue$4.run:737
> AccessController.doPrivileged
> ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege:89
> EventQueue.dispatchEvent:736
> TimableEventQueue.dispatchEvent:136
> EventDispatchThread.pumpOneEventForFilters:199
> EventDispatchThread.pumpEventsForFilter:124
> EventDispatchThread.pumpEventsForHierarchy:113
> EventDispatchThread.pumpEvents:109
> EventDispatchThread.pumpEvents:101
> EventDispatchThread.run:90
> {code}
>
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