public void addPopupMenuContribution() {
		IMenuService menuService = (IMenuService) PlatformUI.getWorkbench()
				.getService(IMenuService.class);

		AbstractContributionFactory viewMenuAddition = new AbstractContributionFactory(
				"popup:org.eclipse.ui.popup.any?after=additions", null) {
			public void createContributionItems(
					final IServiceLocator serviceLocator,
					IContributionRoot additions) {
				IContributionItem item = new CompoundContributionItem(
						"org.eclipse.compare.rubenmenu.container") {
					protected IContributionItem[] getContributionItems() {
						List toReturn = new ArrayList();
						final MenuManager menuDynamic = new MenuManager("Menu Dynamic",null);
						menuDynamic.add(new Action("fake"){}); //if I remove this the popup menu will not show
						menuDynamic.setRemoveAllWhenShown(true);
						IMenuListener menuDynamicListener = new IMenuListener() {

							public void menuAboutToShow(IMenuManager manager) {
								menuDynamic.add(new Action("Dynamic action 1"){});
								menuDynamic.add(new Action("Dynamic action 2"){});
							}
						};
						menuDynamic.addMenuListener(menuDynamicListener);
						toReturn.add(menuDynamic);
						

						return (IContributionItem[]) toReturn
								.toArray(new IContributionItem[toReturn.size()]);
					}
				};
				additions.addContributionItem(item, null);
			}
		};
		menuService.addContributionFactory(viewMenuAddition);
	}
	}