void exit_globals() {

  {- -------------------------------------------
  (1) (exit_globals() は最初の 1回しか実行されない)
      ---------------------------------------- -}

      static bool destructorsCalled = false;
      if (!destructorsCalled) {
        destructorsCalled = true;

  {- -------------------------------------------
  (1) jvmstat 機能 (PerfData 機能) の後片付けを行う.
      ---------------------------------------- -}

        perfMemory_exit();

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

        if (PrintSafepointStatistics) {
          // Print the collected safepoint statistics.
          SafepointSynchronize::print_stat_on_exit();
        }

  {- -------------------------------------------
  (1) outputStream 関係の後片付けを行う.
      ---------------------------------------- -}

        ostream_exit();
      }
    }