void
JvmtiEventControllerPrivate::thread_ended(JavaThread *thread) {

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

      // Removes the JvmtiThreadState associated with the specified thread.
      // May be called after all environments have been disposed.
      assert(JvmtiThreadState_lock->is_locked(), "sanity check");

  {- -------------------------------------------
  (1) (トレース出力)
      ---------------------------------------- -}

      EC_TRACE(("JVMTI [%s] # thread ended", JvmtiTrace::safe_get_thread_name(thread)));

  {- -------------------------------------------
  (1) 引数で指定されたスレッドに対応する JvmtiThreadState を開放.
      ---------------------------------------- -}

      JvmtiThreadState *state = thread->jvmti_thread_state();
      assert(state != NULL, "else why are we here?");
      delete state;
    }