SplitPane layout question

[Florian Brunner]

Hi, 

Sometimes when I'm setting the divider positions of a SplitPane 
programmatically my value get overridden again by some JavaFX internal layout 
code.

For debugging purposes I've added a listener to the position property of the 
divider and have thrown a RuntimeException to see the stack trace. It looks 
like this:

------------------------------------------------------------------------------------------
at 
com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:361)
	at 
com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:81)
	at 
javafx.beans.property.DoublePropertyBase.fireValueChangedEvent(DoublePropertyBase.java:106)
	at 
javafx.beans.property.DoublePropertyBase.markInvalid(DoublePropertyBase.java:113)
	at 
javafx.beans.property.DoublePropertyBase.set(DoublePropertyBase.java:146)
	at javafx.scene.control.SplitPane$Divider.setPosition(SplitPane.java:486)
	at 
com.sun.javafx.scene.control.skin.SplitPaneSkin.setAbsoluteDividerPos(SplitPaneSkin.java:310)
	at 
com.sun.javafx.scene.control.skin.SplitPaneSkin.setupContentAndDividerForLayout(SplitPaneSkin.java:502)
	at 
com.sun.javafx.scene.control.skin.SplitPaneSkin.layoutChildren(SplitPaneSkin.java:817)
	at javafx.scene.control.Control.layoutChildren(Control.java:589)
	at javafx.scene.Parent.layout(Parent.java:1074)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Parent.layout(Parent.java:1080)
	at javafx.scene.Scene.doLayoutPass(Scene.java:532)
	at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2363)
	at com.sun.javafx.tk.Toolkit.lambda$runPulse$28(Toolkit.java:314)
	at com.sun.javafx.tk.Toolkit$$Lambda$230/25595560.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:313)
	at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:340)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:451)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:431)
	at 
com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$363(QuantumToolkit.java:298)
	at 
com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$59/174792896.run(Unknown 
Source)
	at 
com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at 
com.sun.glass.ui.gtk.GtkApplication.lambda$null$45(GtkApplication.java:126)
	at com.sun.glass.ui.gtk.GtkApplication$$Lambda$55/1472148546.run(Unknown 
Source)
	at java.lang.Thread.run(Thread.java:745)
------------------------------------------------------------------------------------------

It doesn't seem to get triggered by some code of mine (at least not directly 
according to the stack trace).

Why is this re-layout happing here?
Why does it override the values I've set for the divider positions?
How can stop this?

Thanks for some insights.

-Florian