Bug 329482 Uninstantiated part may be rendered when closing another part in the same stack
1. Activate the 'Javadoc' view. 2. Activate the 'Package Explorer' view. 3. Shutdown. 4. Restart. 5. Ctrl+3 > Properties 6. Hide the 'Properties' view. 7. Now the 'Problems' view is the selected element. It should be the 'Javadoc' view.
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/EPartServiceTest.java
ClientEditor editor = (ClientEditor) saveablePart.getObject();
		editor.setThrowException(throwException);
		
		applicationContext.set(ISaveHandler.class.getName(), null);
		EPartService partService = (EPartService) window.getContext().get(
				EPartService.class.getName());
		if (beforeDirty) {
			assertEquals(!throwException,
					partService.savePart(saveablePart, confirm));
		} else {
			assertTrue(
					"The part is not dirty, the save operation should have complete successfully",
					partService.savePart(saveablePart, confirm));
		}
		assertEquals(beforeDirty && throwException, saveablePart.isDirty());
		assertEquals(beforeDirty, editor.wasSaveCalled());
	}
	public void testSavePart_NoHandler_TTT() {
		testSavePart_NoHandler(true, true, true);
	}
	public void testSavePart_NoHandler_TTF() {
		testSavePart_NoHandler(true, true, false);
	}
	public void testSavePart_NoHandler_TFT() {
		testSavePart_NoHandler(true, false, true);
	}
	public void testSavePart_NoHandler_TFF() {
		testSavePart_NoHandler(true, false, false);
	}
	public void testSavePart_NoHandler_FTT() {