Deadlock: JFXPanel, ContextMenu, macOS

[Kevin Rushforth]

If you can provide a small, standalone test case as part of the bug 
report, that would be ideal.

Thanks.

-- Kevin


On 7/30/2020 6:46 AM, Steven Yi wrote:
> Hi Michael,
>
> Thanks for the link, I missed that when I went to explore JBS. I'll report
> the issue there.
>
> All best,
> Steven
>
>
> On Thu, Jul 30, 2020 at 3:25 AM Michael Paus <mp at jugs.org> wrote:
>
>> Hi Steven,
>> the right place for bug reports like this is here:
>> <https://bugs.java.com/bugdatabase/>
>> Michael
>>
>> Am 30.07.20 um 01:28 schrieb Steven Yi:
>>> Hi All,
>>>
>>> I'm not sure if this is the place to report this, but hopefully so. (I
>> did
>>> not see a way to create an account or report issues on JBS.)
>>>
>>> I am using JavaFX embedded within a Swing application and had found
>>> intermittent deadlocks on macOS that I wasn't sure why it was happening.
>> I
>>> was finally able to create a minimal working example and have published
>> it
>>> here:
>>>
>>> https://github.com/kunstmusik/ContextMenuHangingTest
>>>
>>> The switching applications seems to be a key to getting the deadlock to
>>> happen. Testing with debugger in Netbeans, when the app freezes, I paused
>>> the app and saw this in the Java FX Application Thread stack:
>>>
>>> "JavaFX Application Thread"
>>> at sun.lwawt.macosx.LWCToolkit.doAWTRunLoopImpl(LWCToolkit.java)
>>> at sun.lwawt.macosx.LWCToolkit.doAWTRunLoop(LWCToolkit.java:913)
>>> at sun.lwawt.macosx.LWCToolkit.invokeAndWait(LWCToolkit.java:694)
>>> at sun.lwawt.macosx.LWCToolkit.invokeAndWait(LWCToolkit.java:639)
>>> at sun.lwawt.macosx.CAccessibility.invokeAndWait(CAccessibility.java:94)
>>> at sun.lwawt.macosx.CAccessibility.getFocusOwner(CAccessibility.java:548)
>>> at com.sun.glass.ui.mac.MacWindow._setView(MacWindow.java)
>>> at com.sun.glass.ui.Window.setView(Window.java:416)
>>> at
>>>
>> com.sun.javafx.tk.quantum.WindowStage.lambda$setScene$0(WindowStage.java:287)
>>> at com.sun.javafx.tk.quantum.WindowStage$$Lambda$359.792704517.get
>>> at
>>>
>> com.sun.javafx.tk.quantum.QuantumToolkit.runWithRenderLock(QuantumToolkit.java:430)
>>> at com.sun.javafx.tk.quantum.WindowStage.setScene(WindowStage.java:286)
>>> at javafx.stage.Window$12.invalidated(Window.java:1085)
>>> at
>>>
>> javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:110)
>>> at
>>>
>> javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:145)
>>> at javafx.stage.Window.setShowing(Window.java:1174)
>>> at javafx.stage.Window.show(Window.java:1189)
>>> at javafx.stage.PopupWindow.showImpl(PopupWindow.java:472)
>>> at javafx.stage.PopupWindow.show(PopupWindow.java:417)
>>> at javafx.scene.control.ContextMenu.doShow(ContextMenu.java:323)
>>> at javafx.scene.control.ContextMenu.show(ContextMenu.java:265)
>>> at
>>>
>> com.kunstmusik.contextmenuhangingtest.HangingTest.lambda$main$0(HangingTest.java:29)
>>> at
>>>
>> com.kunstmusik.contextmenuhangingtest.HangingTest$$Lambda$191.1699780362.handle
>>> at
>>>
>> com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
>>> at
>>>
>> com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:234)
>>> at
>>>
>> com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
>>> at
>>>
>> com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
>>> at
>>>
>> com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
>>> at
>>>
>> com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
>>> at
>>>
>> com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
>>> at
>>>
>> com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
>>> at
>>>
>> com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
>>> at
>>>
>> com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
>>> at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
>>> at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
>>> at javafx.event.Event.fireEvent(Event.java:198)
>>> at javafx.scene.Node.fireEvent(Node.java:8885)
>>> at javafx.scene.control.Button.fire(Button.java:203)
>>> at
>>>
>> com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206)
>>> at
>>>
>> com.sun.javafx.scene.control.behavior.ButtonBehavior$$Lambda$247.642849157.handle
>>> at
>> com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
>>> at
>>>
>> com.sun.javafx.scene.control.inputmap.InputMap$$Lambda$242.1652994145.handle
>>> at
>>>
>> com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
>>> at
>>>
>> com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
>>> at
>>>
>> com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:234)
>>> at
>>>
>> com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
>>> at
>>>
>> com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
>>> at
>>>
>> com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
>>> at
>>>
>> com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
>>> at
>>>
>> com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
>>> at
>>>
>> com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
>>> at
>>>
>> com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
>>> at
>>>
>> com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
>>> at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
>>> at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
>>> at javafx.event.Event.fireEvent(Event.java:198)
>>> at javafx.scene.Scene$MouseHandler.process(Scene.java:3890)
>>> at javafx.scene.Scene.processMouseEvent(Scene.java:1885)
>>> at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2618)
>>> at
>>>
>> com.sun.javafx.tk.quantum.EmbeddedScene.lambda$mouseEvent$4(EmbeddedScene.java:287)
>>> at com.sun.javafx.tk.quantum.EmbeddedScene$$Lambda$322.1002466434.run
>>> at java.security.AccessController.doPrivileged(AccessController.java)
>>> at
>>>
>> com.sun.javafx.tk.quantum.EmbeddedScene.lambda$mouseEvent$5(EmbeddedScene.java:280)
>>> at com.sun.javafx.tk.quantum.EmbeddedScene$$Lambda$321.1000105301.run
>>> at
>>>
>> com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
>>> at com.sun.javafx.application.PlatformImpl$$Lambda$163.1646337711.run
>>> at java.security.AccessController.doPrivileged(AccessController.java)
>>> at
>>>
>> com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
>>> at com.sun.javafx.application.PlatformImpl$$Lambda$162.158199555.run
>>> at
>>>
>> com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
>>> Any help would be very much appreciated.
>>>
>>> Thanks,
>>> Steven
>>
>>