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
.createApplication();
		MWindow window = MApplicationFactory.eINSTANCE.createWindow();
		application.getChildren().add(window);
		MPartDescriptor partDescriptor = MApplicationFactory.eINSTANCE
				.createPartDescriptor();
		partDescriptor.setId("partB");
		partDescriptor.setCategory("aCategory");
		application.getDescriptors().add(partDescriptor);
		MPartStack partStackA = MApplicationFactory.eINSTANCE.createPartStack();
		window.getChildren().add(partStackA);
		MPartStack partStackB = MApplicationFactory.eINSTANCE.createPartStack();
		partStackB.getTags().add("aCategory");
		window.getChildren().add(partStackB);
		MPart partA = MApplicationFactory.eINSTANCE.createPart();
		partA.setId("partA");
		partStackA.getChildren().add(partA);
		partStackA.setSelectedElement(partA);
		window.setSelectedElement(partStackA);
		application.setSelectedElement(window);
		initialize(applicationContext, application);
		getEngine().createGui(window);
		EPartService partService = (EPartService) window.getContext().get(
				EPartService.class.getName());
		partService.activate(partA);
		assertEquals(partA, partService.getActivePart());
		MPart partB = partService.showPart("partB",
				EPartService.PartState.CREATE);
		assertEquals(1, partStackA.getChildren().size());
		assertEquals(
				"Only creating the part, the active part should not have changed",