Java SE (Java Platform, Standard Edition)

Hi,

When I set "setManaged(false)" and "setVisible(false)" on a TitledPane within a Accordion it wont visualy remove from the accordion as supposed.
Somehow its like just setting "setVisible(false)" (see Image).

http://img28.imageshack.us/img28/6821/titledpane.png

here is the code for the fxml (this fxml wont work under JavaFX 2.0, because I removed Nodes covered by @DefaultProperty in 2.1)

<?xml version="1.0" encoding="UTF-8"?>
 
<?import java.lang.*?>
<?import javafx.scene.control.*?> 
<?import javafx.scene.layout.*?> 
 
<VBox xmlns:fx="http://javafx.com/fxml" fx:controller="Controller">
	<MenuBar>
	    <Menu text="show">
	    	<items>
            	<CheckMenuItem text="Accordion" selected="true" fx:id="toggleAccordion" />
            	<CheckMenuItem text="first" selected="true" fx:id="toggleFirst" />
            	<CheckMenuItem text="second" selected="true" onAction="#handleToggleSecond" />
            </items>
	    </Menu>
	</MenuBar>
	<Accordion fx:id="accordion">
		<panes>
			<TitledPane text="first" fx:id="first">
				<content>
					<Label text="test" />
				</content>
			</TitledPane>
			<TitledPane text="second" fx:id="second">
				<content>
					<Label text="test2" />
				</content>
			</TitledPane>
			<TitledPane text="last">
				<content>
					<Label text="last" />
				</content>
			</TitledPane>
		</panes>
	</Accordion>
</VBox>

And here is my Controller:

import java.net.URL;
import java.util.ResourceBundle;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Accordion;
import javafx.scene.control.CheckMenuItem;
import javafx.scene.control.TitledPane;

public class Controller implements Initializable {
	
	@FXML
	private CheckMenuItem toggleAccordion;
	@FXML
	private CheckMenuItem toggleFirst;
	
	@FXML
	private Accordion accordion;
	@FXML
	private TitledPane first;
	@FXML
	private TitledPane second;
	
	@Override
	public void initialize(URL location, ResourceBundle resources) {
		accordion.managedProperty().bindBidirectional(toggleAccordion.selectedProperty());
		accordion.visibleProperty().bindBidirectional(toggleAccordion.selectedProperty());
		first.managedProperty().bindBidirectional(toggleFirst.selectedProperty());
		first.visibleProperty().bindBidirectional(toggleFirst.selectedProperty());
	}
	
	public void handleToggleSecond(ActionEvent event) {
		Object source = event.getSource();

		if (source instanceof CheckMenuItem) {
			second.setManaged(((CheckMenuItem) source).isSelected());
			second.setVisible(((CheckMenuItem) source).isSelected());
		}
	}
}

As you can see I tryed some different ways to set the "setManaged" ... once with bindbidirectional and once with an ActionEvent.
I am pretty sure, that this code (the ActionEvent) was working in JavaFX 2.0.

Is it a bad idea to set setManaged on a TitledPane?
Can you reproduce this error?
Is it a bug?

Thanks for any suggestions :)