When showing the popup of a ComboBox contained in a JFXPanel, the following exception occurs. This issue has been introduced in b87 or b88 (not reproducible in b86). The popup is displayed but it doesnt work and it is impossible to dismiss it.


java.lang.ClassCastException: com.sun.javafx.tk.quantum.EmbeddedStage cannot be cast to com.sun.javafx.tk.quantum.WindowStage
at com.sun.javafx.tk.quantum.WindowStage.setVisible(WindowStage.java:386)
at javafx.stage.Window$9.invalidated(Window.java:789)
at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:107)
at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:141)
at javafx.stage.Window.setShowing(Window.java:827)
at javafx.stage.Window.hide(Window.java:852)
at javafx.stage.PopupWindow.hide(PopupWindow.java:416)
at javafx.stage.PopupWindow.doAutoHide(PopupWindow.java:581)
at javafx.stage.PopupWindow$PopupEventRedirector.handleMousePressedEvent(PopupWindow.java:805)
at javafx.stage.PopupWindow$PopupEventRedirector.handleRedirectedEvent(PopupWindow.java:747)
at com.sun.javafx.event.EventRedirector.dispatchCapturingEvent(EventRedirector.java:106)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchCapturingEvent(CompositeEventDispatcher.java:43)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:52)
at com.sun.javafx.event.EventRedirector.redirectEvent(EventRedirector.java:124)
at com.sun.javafx.event.EventRedirector.dispatchCapturingEvent(EventRedirector.java:103)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchCapturingEvent(CompositeEventDispatcher.java:43)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:52)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:202)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3597)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3428)
at javafx.scene.Scene$MouseHandler.access$1800(Scene.java:3380)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1661)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2448)
at com.sun.javafx.tk.quantum.EmbeddedScene$2$1.run(EmbeddedScene.java:218)
at com.sun.javafx.tk.quantum.EmbeddedScene$2$1.run(EmbeddedScene.java:206)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.EmbeddedScene$2.run(EmbeddedScene.java:206)
at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:224)
at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:221)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:221)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:94)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:101)
at java.lang.Thread.run(Thread.java:724)


The cast occurs in the following code:

                if (owner != null) {
                    WindowStage ownerStage = (WindowStage)owner;
                    ownerStage.requestToFront();
                }