Deadlock: JFXPanel, ContextMenu, macOS

[Michael Paus]

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