Action listener issue

Hi,

I have created an abstract dialog class for dialogs based on Swixml, 
with a public cancelAction. (see below)

So that I can call it from my XUL code like that :
<button text="dialog.cancel" action="cancelAction"/>

/**
  * This class merely defines what we need to create
  * a dialog box with SwiXML
  *
  * @author Tristan RICHARD
  */
public abstract class SwiXMLDialog {

	/**
	 * Rendering engine from XUL to Swing
	 */
	SwingEngine swix;

	public Action cancelAction = new AbstractAction() {
		public void actionPerformed(ActionEvent e) {
			dialog.dispose();
		}
	};

	/**
	 * The top UI <code>Container</code> to represent this class
	 */
	JDialog dialog;
...

There's something strange out there:
When I'm using Eclipse, and jre 1.4.2_04 from Sun, I have no pb.
But when my app is launched directly with the same jre, outside Eclipse, 
the button doesn't execute the action code...

I assume there is a problem in action listener registration  by Swix?
The problem doesn't happen if I set explicitely the action listener in 
the Java code, which I'd like to avoid.

Can anyone help ?

Thx,
Tristan Richard