Bug 126507 [CommonNavigator] [Java] Proposed Java extension for Common Navigator
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerContentProvider.java
else {
						postRefresh(parent, PARENT, element);
					}	
				}
				return;				
			} else {  
				postAdd(parent, element);
			}
		}
	
		if (elementType == IJavaElement.COMPILATION_UNIT) {
			if (kind == IJavaElementDelta.CHANGED) {
				
				postRefresh(element, ORIGINAL, element);
				updateSelection(delta);
			}
			return;
		}
		
		if (elementType == IJavaElement.CLASS_FILE)
			return;
		
		
		if (elementType == IJavaElement.PACKAGE_FRAGMENT_ROOT) {
			
			if ((flags & IJavaElementDelta.F_ARCHIVE_CONTENT_CHANGED) != 0) {
				postRefresh(element, ORIGINAL, element);
				return;
			}