NPE in VirtualFlow

[Mario Ivankovits]

Hi!

Every now and then I get the exception down there (starting with JavaFX 8u40-b18 if I remember correctly)

It seems it has something to to with the fact that the items list of one of my TableViews gets cleared and so no cells are visible any more.
I was not yet able to always reproduce that. I will try to do that, but probably someone has a clue anyway?

BR,
Mario

java.lang.NullPointerException
	at com.sun.javafx.scene.control.skin.VirtualFlow.getCellIndex(VirtualFlow.java:1726)
	at com.sun.javafx.scene.control.skin.VirtualFlow.addLeadingCells(VirtualFlow.java:1274)
	at com.sun.javafx.scene.control.skin.VirtualFlow.layoutChildren(VirtualFlow.java:1194)
	at com.sun.javafx.scene.control.skin.VirtualFlow.setCellCount(VirtualFlow.java:231)
	at com.sun.javafx.scene.control.skin.TableViewSkinBase.updateRowCount(TableViewSkinBase.java:554)
	at com.sun.javafx.scene.control.skin.VirtualContainerBase.checkState(VirtualContainerBase.java:113)
	at com.sun.javafx.scene.control.skin.VirtualContainerBase.layoutChildren(VirtualContainerBase.java:108)
	at com.sun.javafx.scene.control.skin.TableViewSkinBase.layoutChildren(TableViewSkinBase.java:683)
	at javafx.scene.control.Control.layoutChildren(Control.java:576)
	at javafx.scene.Parent.layout(Parent.java:1076)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Parent.layout(Parent.java:1082)
	at javafx.scene.Scene.doLayoutPass(Scene.java:552)
	at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2397)
	at com.sun.javafx.tk.Toolkit.lambda$runPulse$30(Toolkit.java:314)
	at com.sun.javafx.tk.Toolkit$$Lambda$243/122134773.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:313)
	at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:340)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:525)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:505)
	at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$400(QuantumToolkit.java:334)
	at com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$41/2090707712.run(Unknown Source)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)