Bug 53098 [KeyBindings] KeyBinding service must bind (DEL) key to ActionFactory.DELETE
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
return false;
			}
		};		
		
		final IMutableCommandHandlerService commandHandlerServiceA = CommandHandlerServiceFactory.getMutableCommandHandlerService();
		commandHandlerServiceA.setHandlersByCommandId(new HashMap(Collections.singletonMap("command", handlerA)));
		final IMutableCommandHandlerService commandHandlerServiceB = CommandHandlerServiceFactory.getMutableCommandHandlerService();
		commandHandlerServiceB.setHandlersByCommandId(new HashMap(Collections.singletonMap("command", handlerB)));				
				
		menu.add(new Separator());
		
		menu.add(new Action("Add handler A to the workbench") {
			public void run() {
				IWorkbench workbench = PlatformUI.getWorkbench();
				IWorkbenchCommandSupport workbenchCommandSupport = (IWorkbenchCommandSupport) workbench.getCommandSupport();
				workbenchCommandSupport.getCompoundCommandHandlerService().addCommandHandlerService(commandHandlerServiceA);
			}
		});
		menu.add(new Action("Remove handler A from the workbench") {
			public void run() {
				IWorkbench workbench = PlatformUI.getWorkbench();
				IWorkbenchCommandSupport workbenchCommandSupport = (IWorkbenchCommandSupport) workbench.getCommandSupport();
				workbenchCommandSupport.getCompoundCommandHandlerService().removeCommandHandlerService(commandHandlerServiceA);
			}
		});
		
		menu.add(new Action("Add handler B to the workbench") {
			public void run() {
				IWorkbench workbench = PlatformUI.getWorkbench();
				IWorkbenchCommandSupport workbenchCommandSupport = (IWorkbenchCommandSupport) workbench.getCommandSupport();