* Waits for the {@link Service} to reach the {@linkplain State#TERMINATED terminated state}.
   *
   * @throws IllegalStateException if the service {@linkplain State#FAILED fails}.
   * @since 15.0
   */
  void awaitTerminated();

  /**
   * Waits for the {@link Service} to reach a terminal state (either {@link Service.State#TERMINATED
   * terminated} or {@link Service.State#FAILED failed}) for no more than the given time.
   *

    }
  }

  @Override
  public final void awaitTerminated() {
    monitor.enterWhenUninterruptibly(isStopped);
    try {
      checkCurrentState(TERMINATED);
    } finally {
      monitor.leave();
    }
  }

  @Override
  public final void awaitTerminated(long timeout, TimeUnit unit) throws TimeoutException {

          }

          @Override
          public final void awaitTerminated() {
            delegate.awaitTerminated();
          }

          @Override
          public final void awaitTerminated(long timeout, TimeUnit unit) throws TimeoutException {
            delegate.awaitTerminated(timeout, unit);
          }

          @Override
          public final boolean isRunning() {

          }

          @Override
          public final void awaitTerminated() {
            delegate.awaitTerminated();
          }

          @Override
          public final void awaitTerminated(long timeout, TimeUnit unit) throws TimeoutException {
            delegate.awaitTerminated(timeout, unit);
          }

          @Override
          public final boolean isRunning() {

  }

  /**
   * @since 15.0
   */
  @Override
  public final void awaitTerminated() {
    delegate.awaitTerminated();
  }

  /**
   * @since 15.0
   */
  @Override
  public final void awaitTerminated(long timeout, TimeUnit unit) throws TimeoutException {
    delegate.awaitTerminated(timeout, unit);
  }

  interface Cancellable {
    void cancel(boolean mayInterruptIfRunning);