Bug 304239 move each core application service to its own package
In M4, some services have their own package, others are provided in core.services. Boris and I talked about moving each service (API) to its own package. Reasons are: - aids with discoverability - helps separate application services from other public API in the core.services package (such as IDisposable, JSONObject) - helps to emphasize that services can be setup and consumed individually - will make it easier to move to separate bundles if that is ever needed This means moving Adapter, Logger, IStatusHandler to their own packages.
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/EPartServiceTest.java
partService.activate(partB);
		o = applicationContext.get(IServiceConstants.ACTIVE_PART);
		assertEquals(partB, o);
	}
	private void testShowPart_Bug307747(PartState partState) {
		MApplication application = MApplicationFactory.eINSTANCE
				.createApplication();
		MPartDescriptor partDescriptor = MApplicationFactory.eINSTANCE
				.createPartDescriptor();
		partDescriptor.setId("partId");
		partDescriptor.setCategory("category");
		application.getDescriptors().add(partDescriptor);
		final MWindow window = MApplicationFactory.eINSTANCE.createWindow();
		application.getChildren().add(window);
		application.setSelectedElement(window);
		
		MPartStack stack = MApplicationFactory.eINSTANCE.createPartStack();
		stack.setId("category");
		window.getChildren().add(stack);
		window.setSelectedElement(stack);
		MPart partA = MApplicationFactory.eINSTANCE.createPart();
		stack.getChildren().add(partA);
		stack.setSelectedElement(partA);
		
		initialize(applicationContext, application);
		
		getEngine().createGui(window);
		EPartService partService = (EPartService) window.getContext().get(
				EPartService.class.getName());
		partService.activate(partA);