notifyFailed(t);
                }
              });
    }

    @Override
    public String toString() {
      return AbstractIdleService.this.toString();
    }
  }

  /** Constructor for use by subclasses. */
  protected AbstractIdleService() {}

  /** Start the service. */
  protected abstract void startUp() throws Exception;

  /** Stop the service. */

  private static class DefaultService extends AbstractIdleService {
    @Override
    protected void startUp() throws Exception {}

    @Override
    protected void shutDown() throws Exception {}
  }

  public void testFunctionalServiceStartStop() {
    AbstractIdleService service = new DefaultService();
    service.startAsync().awaitRunning();

  private static class DefaultService extends AbstractIdleService {
    @Override
    protected void startUp() throws Exception {}

    @Override
    protected void shutDown() throws Exception {}
  }

  public void testFunctionalServiceStartStop() {
    AbstractIdleService service = new DefaultService();
    service.startAsync().awaitRunning();