}
  }

  /**
   * Waits up to LONG_DELAY_MS for the given thread to enter a wait state: BLOCKED, WAITING, or
   * TIMED_WAITING.
   */
  void waitForThreadToEnterWaitState(Thread thread) {
    waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
  }

  /**
   * Returns the number of milliseconds since time given by startNanoTime, which must have been