When DND MenuBar on either CV or hierarchy, I get a NPE stack :

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
at com.sun.javafx.scene.control.skin.MenuBarSkin.<init>(MenuBarSkin.java:293)
at javafx.scene.control.MenuBar.createDefaultSkin(MenuBar.java:157)
at javafx.scene.control.Control.impl_processCSS(Control.java:870)
at javafx.scene.Parent.impl_processCSS(Parent.java:1229)
at javafx.scene.Node.processCSS(Node.java:8645)
at javafx.scene.Node.impl_processCSS(Node.java:8690)
at com.oracle.javafx.scenebuilder.kit.metadata.util.Deprecation.processCSS(Deprecation.java:64)
at com.oracle.javafx.scenebuilder.kit.editor.drag.source.LibraryDragSource.getLibraryItemObject(LibraryDragSource.java:69)
at com.oracle.javafx.scenebuilder.kit.editor.drag.source.LibraryDragSource.getDraggedObjects(LibraryDragSource.java:85)
at com.oracle.javafx.scenebuilder.kit.editor.panel.content.gesture.DragGesture.dragEnteredGlassLayer(DragGesture.java:127)
at com.oracle.javafx.scenebuilder.kit.editor.panel.content.gesture.DragGesture.start(DragGesture.java:104)
at com.oracle.javafx.scenebuilder.kit.editor.panel.content.mode.EditModeController.activateGesture(EditModeController.java:619)
at com.oracle.javafx.scenebuilder.kit.editor.panel.content.mode.EditModeController.dragEnteredGlassLayer(EditModeController.java:574)
at com.oracle.javafx.scenebuilder.kit.editor.panel.content.mode.EditModeController.access$600(EditModeController.java:51)
at com.oracle.javafx.scenebuilder.kit.editor.panel.content.mode.EditModeController$7.handle(EditModeController.java:453)
at com.oracle.javafx.scenebuilder.kit.editor.panel.content.mode.EditModeController$7.handle(EditModeController.java:450)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:203)
at javafx.scene.Scene$DnDGesture.handleExitEnter(Scene.java:3080)
at javafx.scene.Scene$DnDGesture.processTargetEnterOver(Scene.java:2974)
at javafx.scene.Scene$DnDGesture.access$6100(Scene.java:2801)
at javafx.scene.Scene$DropTargetListener.dragOver(Scene.java:2732)
at com.sun.javafx.tk.quantum.GlassSceneDnDEventHandler$4.run(GlassSceneDnDEventHandler.java:103)
at com.sun.javafx.tk.quantum.GlassSceneDnDEventHandler$4.run(GlassSceneDnDEventHandler.java:99)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassSceneDnDEventHandler.handleDragOver(GlassSceneDnDEventHandler.java:99)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleDragOver(GlassViewEventHandler.java:618)
at com.sun.glass.ui.View.handleDragOver(View.java:661)
at com.sun.glass.ui.View.notifyDragOver(View.java:979)
at com.sun.glass.ui.mac.MacPasteboard._putItemsFromArray(Native Method)
at com.sun.glass.ui.mac.MacPasteboard.putItemsFromArray(MacPasteboard.java:143)
at com.sun.glass.ui.mac.MacPasteboard.putItems(MacPasteboard.java:165)
at com.sun.glass.ui.mac.MacSystemClipboard.pushToSystem(MacSystemClipboard.java:223)
at com.sun.glass.ui.SystemClipboard.flush(SystemClipboard.java:51)
at com.sun.glass.ui.ClipboardAssistance.flush(ClipboardAssistance.java:59)
at com.sun.javafx.tk.quantum.QuantumClipboard.flush(QuantumClipboard.java:260)
at com.sun.javafx.tk.quantum.QuantumToolkit.startDrag(QuantumToolkit.java:1147)
at javafx.scene.Scene$DnDGesture.dragDetectedProcessed(Scene.java:2845)
at javafx.scene.Scene$DnDGesture.process(Scene.java:2906)
at javafx.scene.Scene$DnDGesture.access$8500(Scene.java:2801)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3637)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3391)
at javafx.scene.Scene$MouseHandler.access$1800(Scene.java:3342)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1626)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2401)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:323)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:248)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:365)
at com.sun.glass.ui.View.handleMouseEvent(View.java:525)
at com.sun.glass.ui.View.notifyMouse(View.java:891)