NPE in skin.Utils.computeXOffset

This NPE just came up:


java.lang.NullPointerException
at com.sun.javafx.scene.control.skin.Utils.computeXOffset(Utils.java:695)
at com.sun.javafx.scene.control.skin.TitledPaneSkin$TitleRegion.layoutChildren(TitledPaneSkin.java:453)
at javafx.scene.Parent.layout(Parent.java:1063)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Group.impl_computeLayoutBounds(Group.java:159)
at javafx.scene.Node$15.computeBounds(Node.java:3171)
at javafx.scene.Node$LazyBoundsProperty.get(Node.java:8991)
at javafx.scene.Node$LazyBoundsProperty.get(Node.java:8961)
at javafx.scene.Node.getLayoutBounds(Node.java:3186)
at com.sun.javafx.scene.control.skin.ScrollPaneSkin.computeScrollNodeSize(ScrollPaneSkin.java:930)
at com.sun.javafx.scene.control.skin.ScrollPaneSkin.access$2400(ScrollPaneSkin.java:66)
at com.sun.javafx.scene.control.skin.ScrollPaneSkin$4.layoutChildren(ScrollPaneSkin.java:276)
at javafx.scene.Parent.layout(Parent.java:1063)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Parent.layout(Parent.java:1069)
at javafx.scene.Scene.doLayoutPass(Scene.java:564)
at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2341)
at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:329)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:479)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:460)
at com.sun.javafx.tk.quantum.QuantumToolkit$13.run(QuantumToolkit.java:327)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)