Created
November 18, 2017 00:02
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CheckComboBoxTableCell Exception
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Exception in thread "JavaFX Application Thread" java.lang.NullPointerException | |
at com.sun.javafx.scene.control.skin.ComboBoxPopupControl.positionAndShowPopup(ComboBoxPopupControl.java:197) | |
at com.sun.javafx.scene.control.skin.ComboBoxPopupControl.show(ComboBoxPopupControl.java:170) | |
at com.sun.javafx.scene.control.skin.ComboBoxBaseSkin.handleControlPropertyChanged(ComboBoxBaseSkin.java:127) | |
at com.sun.javafx.scene.control.skin.ComboBoxListViewSkin.handleControlPropertyChanged(ComboBoxListViewSkin.java:159) | |
at com.sun.javafx.scene.control.skin.BehaviorSkinBase.lambda$registerChangeListener$61(BehaviorSkinBase.java:197) | |
at com.sun.javafx.scene.control.MultiplePropertyChangeListenerHandler$1.changed(MultiplePropertyChangeListenerHandler.java:55) | |
at javafx.beans.value.WeakChangeListener.changed(WeakChangeListener.java:89) | |
at com.sun.javafx.binding.ExpressionHelper$SingleChange.fireValueChangedEvent(ExpressionHelper.java:182) | |
at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:81) | |
at javafx.beans.property.ReadOnlyBooleanPropertyBase.fireValueChangedEvent(ReadOnlyBooleanPropertyBase.java:72) | |
at javafx.beans.property.ReadOnlyBooleanWrapper.fireValueChangedEvent(ReadOnlyBooleanWrapper.java:103) | |
at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:110) | |
at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:144) | |
at javafx.scene.control.ComboBoxBase.setShowing(ComboBoxBase.java:185) | |
at javafx.scene.control.ComboBoxBase.show(ComboBoxBase.java:391) | |
at com.sun.javafx.scene.control.behavior.ComboBoxBaseBehavior.show(ComboBoxBaseBehavior.java:286) | |
at com.sun.javafx.scene.control.behavior.ComboBoxBaseBehavior.mouseReleased(ComboBoxBaseBehavior.java:241) | |
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96) | |
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89) | |
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218) | |
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80) | |
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) | |
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.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$MouseHandler.process(Scene.java:3757) | |
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485) | |
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762) | |
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494) | |
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:381) | |
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295) | |
at java.security.AccessController.doPrivileged(Native Method) | |
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:417) | |
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389) | |
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:416) | |
at com.sun.glass.ui.View.handleMouseEvent(View.java:555) | |
at com.sun.glass.ui.View.notifyMouse(View.java:937) | |
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) | |
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191) | |
at java.lang.Thread.run(Thread.java:748) |
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Here's the MCVE to play around with.
Here's an animation of how to replicate it:
![image](https://camo.githubusercontent.com/5e06770fecb217282568dcd8b54594c6501e971ce9e0d49f635cf6bb167a4b5f/68747470733a2f2f692e696d6775722e636f6d2f7a3775424933342e676966)