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/HeadlessApplicationTest.java
for (MWindow wbw : application.getChildren()) {
			createGUI(wbw);
		}
		if (needsActiveChildEventHandling()) {
			addActiveChildEventHandling();
		}
	}
	@Override
	protected void tearDown() throws Exception {
		for (MWindow window : application.getChildren()) {
			renderer.removeGui(window);
		}
		super.tearDown();
	}
	protected boolean needsActiveChildEventHandling() {
		return true;
	}
	private void addActiveChildEventHandling() {
	}
	public void testGet_ActiveContexts() throws Exception {
		IEclipseContext context = application.getContext();
		assertNotNull(context.get(IServiceConstants.ACTIVE_CONTEXTS));
	}
	public void testGet_Selection() throws Exception {
		IEclipseContext context = application.getContext();
		assertNull(context.get(IServiceConstants.SELECTION));
	}
	public void testGet_ActiveChild() throws Exception {
		IEclipseContext context = application.getContext();
		assertNull(context.get(IContextConstants.ACTIVE_CHILD));