void instanceRefKlass::release_and_notify_pending_list_lock(
  BasicLock *pending_list_basic_lock) {

  {- -------------------------------------------
  (1) (変数宣言など) (See: PreserveExceptionMark)
      ---------------------------------------- -}

      // we may enter this with pending exception set
      PRESERVE_EXCEPTION_MARK;  // exceptions are never thrown, needed for TRAPS argument
      //

  {- -------------------------------------------
  (1) (変数宣言など)
      ---------------------------------------- -}

      Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());

  {- -------------------------------------------
  (1) (assert)
      ---------------------------------------- -}

      assert(ObjectSynchronizer::current_thread_holds_lock(
               JavaThread::current(), h_lock),
             "Lock should be held");

  {- -------------------------------------------
  (1) java_lang_ref_Reference::pending_list() に対して待っているスレッドがいるかもしれないので, 
      ObjectSynchronizer::notifyall() を呼んで起床させておく.
      ---------------------------------------- -}

      // Notify waiters on pending lists lock if there is any reference.
      if (java_lang_ref_Reference::pending_list() != NULL) {
        ObjectSynchronizer::notifyall(h_lock, THREAD);
      }

  {- -------------------------------------------
  (1) java_lang_ref_Reference::pending_list_lock() に対して 
      ObjectSynchronizer::fast_exit() でロックを開放する.
      ---------------------------------------- -}

      ObjectSynchronizer::fast_exit(h_lock(), pending_list_basic_lock, THREAD);

  {- -------------------------------------------
  (1) 
      ---------------------------------------- -}

      if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
    }