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
.createPerspective();
		perspectiveStack.getChildren().add(perspectiveA);
		perspectiveStack.setSelectedElement(perspectiveA);
		MPlaceholder placeholderD1 = AdvancedFactoryImpl.eINSTANCE
				.createPlaceholder();
		placeholderD1.setRef(partD);
		partD.setCurSharedRef(placeholderD1);
		perspectiveA.getChildren().add(placeholderD1);
		perspectiveA.setSelectedElement(placeholderD1);
		MPerspective perspectiveB = AdvancedFactoryImpl.eINSTANCE
				.createPerspective();
		perspectiveStack.getChildren().add(perspectiveB);
		MPart partA = BasicFactoryImpl.eINSTANCE.createPart();
		perspectiveB.getChildren().add(partA);
		perspectiveB.setSelectedElement(partA);
		MPartStack partStack = BasicFactoryImpl.eINSTANCE.createPartStack();
		perspectiveB.getChildren().add(partStack);
		MPart partB = BasicFactoryImpl.eINSTANCE.createPart();
		partStack.getChildren().add(partB);
		partStack.setSelectedElement(partB);
		MPart partC = BasicFactoryImpl.eINSTANCE.createPart();
		partStack.getChildren().add(partC);
		MPlaceholder placeholderD2 = AdvancedFactoryImpl.eINSTANCE
				.createPlaceholder();
		placeholderD2.setRef(partD);
		partStack.getChildren().add(placeholderD2);
		initialize(applicationContext, application);
		getEngine().createGui(window);
		EPartService partService = window.getContext().get(EPartService.class);
		partService.activate(partD);