src/hotspot/share/classfile/classLoaderData.cpp

*** 966,970 ****
--- 966,979 ----
    for (Klass* k = Atomic::load_acquire(&_klasses); k != NULL; k = k->next_link()) {
      if (k == klass) return true;
    }
    return false;
  }
+ 
+ InstanceKlass* ClassLoaderData::replace_class(Symbol* class_name, InstanceKlass* k) {
+   assert_locked_or_safepoint(SystemDictionary_lock);
+   Dictionary* dict = dictionary();
+   unsigned hash  = dict->compute_hash(class_name);
+   int      index = dict->hash_to_index(hash);
+  
+   return dict->replace_class(index, hash, class_name, k);
+ }