Bug 29170 False error feedback from "Show in package explorer"
Build 20030107 1. Open a .java file in the Java editor. 2. Click "Collapse All" in the packages view to collapse the tree. 3. Right click on the top-level type in the Outline view and choose "Show in Package Explorer" 4. The packages view correctly expands to the selected type, but an error dialog pops up: Title: "Show in Package Explorer" Message: "Couldn't reveal the selected element in Package Explorer. May be the element is filtered out." This happens any time the tree needs to be expanded to reveal a type.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
fActionSet.dispose();
		super.dispose();	
	}
	/**
	 * Implementation of IWorkbenchPart.createPartControl(Composite)
	 */
	public void createPartControl(Composite parent) {
		
		fViewer= createViewer(parent);
		fViewer.setUseHashlookup(true);
		
		setProviders();
		
		JavaPlugin.getDefault().getPreferenceStore().addPropertyChangeListener(this);
	
		
		MenuManager menuMgr= new MenuManager("#PopupMenu"); 
		menuMgr.setRemoveAllWhenShown(true);
		menuMgr.addMenuListener(this);
		fContextMenu= menuMgr.createContextMenu(fViewer.getTree());
		fViewer.getTree().setMenu(fContextMenu);
		
		
		IWorkbenchPartSite site= getSite();
		site.registerContextMenu(menuMgr, fViewer);
		site.setSelectionProvider(fViewer);
		site.getPage().addPartListener(fPartListener);
		
		makeActions();