NPE Stacktrace

gistfile1.txt

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
    at com.sun.glass.ui.monocle.MonocleWindowManager.repaintAll(MonocleWindowManager.java:163)
    at com.sun.glass.ui.monocle.MonocleWindow.notifyDestroy(MonocleWindow.java:427)
    at com.sun.glass.ui.monocle.MonocleWindowManager.closeWindow(MonocleWindowManager.java:106)
    at com.sun.glass.ui.monocle.MonocleWindow._close(MonocleWindow.java:178)
    at com.sun.glass.ui.Window.close(Window.java:323)
    at com.sun.javafx.tk.quantum.WindowStage.lambda$close$393(WindowStage.java:764)
    at com.sun.javafx.tk.quantum.QuantumToolkit.runWithRenderLock(QuantumToolkit.java:407)
    at com.sun.javafx.tk.quantum.WindowStage.close(WindowStage.java:760)
    at javafx.stage.Window$9.invalidated(Window.java:889)
    at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:109)
    at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:144)
    at javafx.stage.Window.setShowing(Window.java:922)
    at javafx.stage.Window.hide(Window.java:947)
    at javafx.stage.PopupWindow.hide(PopupWindow.java:468)
    at com.sun.javafx.scene.control.skin.ComboBoxPopupControl.hide(ComboBoxPopupControl.java:171)
    at com.sun.javafx.scene.control.skin.ComboBoxBaseSkin.handleControlPropertyChanged(ComboBoxBaseSkin.java:129)
    at com.sun.javafx.scene.control.skin.ComboBoxListViewSkin.handleControlPropertyChanged(ComboBoxListViewSkin.java:159)
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase.lambda$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.ReadOnlyBooleanWrapper$ReadOnlyPropertyImpl.fireValueChangedEvent(ReadOnlyBooleanWrapper.java:178)
    at javafx.beans.property.ReadOnlyBooleanWrapper$ReadOnlyPropertyImpl.access$100(ReadOnlyBooleanWrapper.java:148)
    at javafx.beans.property.ReadOnlyBooleanWrapper.fireValueChangedEvent(ReadOnlyBooleanWrapper.java:144)
    at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:110)
    at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:144)
    at javafx.scene.control.ComboBoxBase.setShowing(ComboBoxBase.java:185)
    at javafx.scene.control.ComboBoxBase.hide(ComboBoxBase.java:400)
    at com.sun.javafx.scene.control.skin.ComboBoxBaseSkin.focusLost(ComboBoxBaseSkin.java:99)
    at com.sun.javafx.scene.control.skin.ComboBoxBaseSkin.lambda$new$290(ComboBoxBaseSkin.java:87)
    at com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:361)
    at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:81)
    at javafx.beans.property.ReadOnlyBooleanPropertyBase.fireValueChangedEvent(ReadOnlyBooleanPropertyBase.java:72)
    at javafx.scene.Node$FocusedProperty.notifyListeners(Node.java:7697)
    at javafx.scene.Node.setFocused(Node.java:7750)
    at javafx.scene.Scene$KeyHandler.setWindowFocused(Scene.java:3932)
    at javafx.scene.Scene$KeyHandler.windowForSceneChanged(Scene.java:3950)
    at javafx.scene.Scene$KeyHandler.access$800(Scene.java:3910)
    at javafx.scene.Scene$4.invalidated(Scene.java:637)
    at javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:111)
    at javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:146)
    at javafx.scene.Scene.setWindow(Scene.java:619)
    at javafx.scene.Scene.impl_setWindow(Scene.java:669)
    at javafx.stage.Window$SceneModel.invalidated(Window.java:549)
    at javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:111)
    at javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:146)
    at javafx.stage.Window.setScene(Window.java:530)
    at javafx.stage.Stage.setScene(Stage.java:252)
    at net.cryptodirect.cryptodash.gui.AutoCompleteComboBoxTest.start(AutoCompleteComboBoxTest.java:39)
    at org.testfx.toolkit.impl.ApplicationServiceImpl.lambda$start$71(ApplicationServiceImpl.java:68)
    at org.testfx.util.WaitForAsyncUtils.callCallableAndSetFuture(WaitForAsyncUtils.java:336)
    at org.testfx.util.WaitForAsyncUtils.lambda$asyncFx$13(WaitForAsyncUtils.java:104)
    at com.sun.javafx.application.PlatformImpl.lambda$null$174(PlatformImpl.java:295)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$175(PlatformImpl.java:294)
    at com.sun.glass.ui.monocle.RunnableProcessor.runLoop(RunnableProcessor.java:77)
    at com.sun.glass.ui.monocle.RunnableProcessor.run(RunnableProcessor.java:47)
    at java.lang.Thread.run(Thread.java:745)