*     State#STARTING}, or {@link State#RUNNING}.
   */
  protected final void notifyStopped() {
    monitor.enter();
    try {
      State previous = state();
      switch (previous) {
        case NEW:
        case TERMINATED:
        case FAILED:
          throw new IllegalStateException("Cannot notifyStopped() when the service is " + previous);
        case RUNNING:
        case STARTING:

   *     State#STARTING}, or {@link State#RUNNING}.
   */
  protected final void notifyStopped() {
    monitor.enter();
    try {
      State previous = state();
      switch (previous) {
        case NEW:
        case TERMINATED:
        case FAILED:
          throw new IllegalStateException("Cannot notifyStopped() when the service is " + previous);
        case RUNNING:
        case STARTING:

          @Override
          protected void doStart() {
            notifyFailed(new IllegalStateException("start failure"));
            notifyStopped(); // This will be a no-op.
          }

          @Override
          protected void doStop() {
            notifyStopped();
          }
        };
    final ServiceManager manager = new ServiceManager(asList(a));
    manager.startAsync();

   */
  private static final class NoOpService extends AbstractService {
    @Override
    protected void doStart() {
      notifyStarted();
    }

    @Override
    protected void doStop() {
      notifyStopped();
    }
  }

  /** This is never thrown but only used for logging. */
  private static final class EmptyServiceManagerWarning extends Throwable {}

   */
  private static final class NoOpService extends AbstractService {
    @Override
    protected void doStart() {
      notifyStarted();
    }

    @Override
    protected void doStop() {
      notifyStopped();
    }
  }

  /** This is never thrown but only used for logging. */
  private static final class EmptyServiceManagerWarning extends Throwable {}

                  return;
                }
                shutDown();
              } finally {
                lock.unlock();
              }
              notifyStopped();
            } catch (Throwable t) {
              restoreInterruptIfIsInterruptedException(t);
              notifyFailed(t);
            }
          });
    }

    @Override