if (! isDefaultPackage(firstElement))
if (! JavaElementUtil.isDefaultPackage(firstElement))
	private static boolean isDefaultPackageWithLinkedFiles(Object firstElement) throws JavaModelException {		if (! isDefaultPackage(firstElement))			return false;		IPackageFragment defaultPackage= (IPackageFragment)firstElement;		ICompilationUnit[] cus= defaultPackage.getCompilationUnits();		for (int i= 0; i < cus.length; i++) {			if (isLinkedResource(cus[i]))				return true;		}		return false;	}