Bug 55799 [Intro] When new welcome is available, don't show the old one
One of the M8 candidate builds (any): 1) Open Eclipse on a new workspace 2) Close the new Welcome when it opens 3) Close Eclipse 4) Open Eclipse again. Observe: the old Welcome editor is opened. Expectation: when a product has a valid Intro, old welcome should never be shown.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
public void execute(Event event) {
			}
			
			public boolean isEnabled() {
				return false;
			}
		};
		
		IHandler handlerB = new IHandler() {
			public void execute() {
			}
			
			public void execute(Event event) {
			}
			
			public boolean isEnabled() {
				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() {