Vaadin ActionHandler on Panel doesn't work - java

I use Vaadin 6.8.8. I'm trying to add action handler to panel (to get context menu). The panel takes all the place of the window, but I caused the browser context menu when i do mouse right button click.
public class MyPanel extends Panel {
public MyPanel() {
...
addActionHandler(new Action.Handler(){
...
});
setSizeFull();
}
}
What is wrong?


Those action related methods in Panel are for keyboard shorcuts. Only Tree, Table and TreeTable are the core components supporting context menu. To add a context menu to your panel, take a look at the ContextMenu add-on.

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