Bug 304870 [Compatibility] Cannot show view after performing DND
1. Drag the 'Problems' view to another position in the bottom stack. 2. Window > Show View > History 3. Nothing happens.
bundles/org.eclipse.e4.ui.workbench.swt/src/org/eclipse/e4/ui/workbench/swt/internal/E4Application.java
final IEclipseContext appContext = EclipseContextFactory.create(
				serviceContext, strategy);
		appContext.set(IContextConstants.DEBUG_STRING, "WorkbenchAppContext"); 
		
		IExtensionRegistry registry = RegistryFactory.getRegistry();
		ExceptionHandler exceptionHandler = new ExceptionHandler();
		ReflectionContributionFactory contributionFactory = new ReflectionContributionFactory(
				registry);
		appContext.set(IContributionFactory.class.getName(),
				contributionFactory);
		appContext.set(Logger.class.getName(), ContextInjectionFactory.inject(
				new WorkbenchLogger(), appContext));
		appContext.set(Adapter.class.getName(), ContextInjectionFactory.inject(
				new EclipseAdapter(), appContext));
		appContext.set(IContextConstants.DEBUG_STRING, "WorkbenchContext"); 
		
		appContext.set(ContextManager.class.getName(), new ContextManager());
		
		appContext.set(IServiceConstants.ACTIVE_CONTEXTS,
				new ActiveContextsFunction());
		appContext.set(IServiceConstants.ACTIVE_PART,
				new ActivePartLookupFunction());
		appContext.runAndTrack(new IRunAndTrack() {
			public boolean notify(ContextChangeEvent event) {
				Object o = appContext.get(IServiceConstants.ACTIVE_PART);
				if (o instanceof MPart) {
					appContext.set(IServiceConstants.ACTIVE_PART_ID,
							((MPart) o).getId());
				}
				return true;