Comment 30 for bug 613119

Unity's appmenu code listens for the map event to read in all of the menu items to add to the top menu bar. Applications that have dynamic menus are not supported. This support could be added by Unity by listening for the add/remove signal on the menu bar and rebuilding the top bar whenever the listeners get called.

Eclipse itself runs under Ubuntu 11.04 with the menus intact in its shell. This works because an exception has been made in the appmenu code for Eclipse. An RCP app will have its menus added to the top menu bar, but any adding/removing of menu items by the app will fail.