/* The halt method is synchronized on the halt lock
     * to avoid corruption of the delete-on-shutdown file list.
     * It invokes the true native halt method.
     */

    static void halt(int status) {

  {- -------------------------------------------
  (1) 排他を取った状態で Java_java_lang_Shutdown_halt0() を呼び出すだけ.
      ---------------------------------------- -}

            synchronized (haltLock) {
                halt0(status);
            }