private static void test(MethodEntry current, List<MethodEntry> set) {
   Iterator<MethodEntry> it = current.myCalledMethods.iterator();
   while (it.hasNext()) {
     MethodEntry callee = it.next();
     if (set.contains(callee)) {
       callee.myCalledByMethods.remove(current);
       if (callee.myCalledByMethods.size() == 0) {
         callee.myRelatedMethod = false;
       }
       it.remove();
     } else {
       set.add(callee);
       test(callee, set);
     }
   }
 }