Bug 18071 Package Viewer: Too many refreshes
F1 - when a working copy is closed, it's package is updated - update on a package results in a refresh as the abstract filter claims that IMAGE is a filter property
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/JavaElementContentProvider.java
if (((flags & IJavaElementDelta.F_CLOSED) != 0) || ((flags & IJavaElementDelta.F_OPENED) != 0)) {			
			postRefresh(element);
			return;
		}
		if (kind == IJavaElementDelta.REMOVED) {
			Object parent= internalGetParent(element);			
			postRemove(element);
			if (parent instanceof IPackageFragment) 
				updatePackageIcon((IPackageFragment)parent);
			
			 
			if (isPackageFragmentEmpty(element.getParent())) {
				if (fViewer.testFindItem(parent) != null)
					postRefresh(internalGetParent(parent));
			}  
			return;
		}
		if (kind == IJavaElementDelta.ADDED) { 
			Object parent= internalGetParent(element);
			
			 
			if (parent instanceof IPackageFragment) {
				Object grandparent= internalGetParent(parent);
				
				
				if (parent.equals(fInput)) {
					postRefresh(parent);
				} else {