public void exit(int status) {

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

            SecurityManager security = System.getSecurityManager();
            if (security != null) {
                security.checkExit(status);
            }

  {- -------------------------------------------
  (1) java.lang.Shutdown.exit() を呼び出す.
      ---------------------------------------- -}

            Shutdown.exit(status);