ComponentEvent newbie question

Vaadin 6 / 7 / 8 Framework UI
1

I am using the Dec 22 daily build and attempting to use the new component events, as follows.

GridLayout bottom = new GridLayout(3,3);
final Label ref1Label = new Label("ref1");
bottom.addComponent(ref1Label);
ref1Label.addListener(MouseEvents.ClickEvent.class,this,MouseEvents.ClickListener.clickMethod);

The current class implements MouseEvents.ClickListener but the click method is never invoked when I click on my label. Am I misunderstanding something ?