JavaFX 2.0 :: Cannot Set Divider Positions In Multiple Splitpanes At One Button Click

I have a problem with setting multiple splitpane divider positions. In my application there are multiple splitpanes (one inheriting the other). When resizing the scene (e.g. by double-click or mouse drag) the divider position default values (as set in the FXML) are not taken into account and the application therefore incorrectly displays the divider positions. For example, one pane that should be only 100px wide now spans over the half of the application. Its not very nice because one has to readjust the divider positions manually each time after resizing the window. At the same time, I dont want to set maximum values to keep the layout flexible.
 
I tried to solve this by adjusting the divider positions at a button click event (..setOnAction(new EventHandler<ActionEvent>()...) but when I click it only one splitpane at a time is adjusted. As I have 3 splitpanes I have to click the button 3 times to get all the adjustments. I am not sure whether this is because the click event is consumed after the first adjustment and subsequent repaint of the scene?
 
A sample code of what I have now would look like this:
 
adjustButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent e){
     pane1.setDividerPositions(0.9);
     pane2.setDividerPositions(0.8);
     pane3.setDividerPositions(0,075);
      }
});