IRT_ENTRY(void, InterpreterRuntime::throw_ClassCastException(
  JavaThread* thread, oopDesc* obj))

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

      ResourceMark rm(thread);
      char* message = SharedRuntime::generate_class_cast_message(
        thread, Klass::cast(obj->klass())->external_name());

  {- -------------------------------------------
  (1) (デバッグ用の処理)
      ---------------------------------------- -}

      if (ProfileTraps) {
        note_trap(thread, Deoptimization::Reason_class_check, CHECK);
      }

  {- -------------------------------------------
  (1) THROW_MSG() で, 例外オブジェクトの生成と送出を行う.
      ---------------------------------------- -}

      // create exception
      THROW_MSG(vmSymbols::java_lang_ClassCastException(), message);
    IRT_END