Bug 19974 Packages view: back / forward buttons do not show frame name [package explorer]
Build 20020611 In packages view, - select a container - Navigate / Go Into - hover over Back button - it says simply "Back" It should say "Back to Workspace". Compare with Navigator.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
private void linkToEditor(IStructuredSelection selection) {
		
		
		if (!isActivePart())
			return;
		Object obj= selection.getFirstElement();
		if (selection.size() == 1) {
			IEditorPart part= EditorUtility.isOpenInEditor(obj);
			if (part != null) {
				IWorkbenchPage page= getSite().getPage();
				page.bringToTop(part);
				if (obj instanceof IJavaElement) 
					EditorUtility.revealInEditor(part, (IJavaElement) obj);
			}
		}
	}
	private boolean isActivePart() {
		return this == getSite().getPage().getActivePart();
	}
	
	public void saveState(IMemento memento) {
		if (fViewer == null) {
			
			if (fMemento != null) 
				memento.putMemento(fMemento);
			return;
		}
		saveExpansionState(memento);
		saveSelectionState(memento);
		saveLayoutState(memento);