// ensure that if weird things happen during construction then we get exceptions.
    NoOpService service1 = new NoOpService();
    // This service will start service1 when addListener is called.  This simulates service1 being
    // started asynchronously.
    Service service2 =
        new Service() {
          final NoOpService delegate = new NoOpService();

          @Override

    // ensure that if weird things happen during construction then we get exceptions.
    NoOpService service1 = new NoOpService();
    // This service will start service1 when addListener is called.  This simulates service1 being
    // started asynchronously.
    Service service2 =
        new Service() {
          final NoOpService delegate = new NoOpService();

          @Override

    NoOpService service = new NoOpService();

    service.startAsync().awaitRunning();

    service.stopAsync().awaitTerminated();
    service.stopAsync();
    assertEquals(State.TERMINATED, service.state());
  }

  public void testNoOpServiceStopIdempotenceDoubleWait() throws Exception {
    NoOpService service = new NoOpService();

    service.startAsync().awaitRunning();

    NoOpService service = new NoOpService();

    service.startAsync().awaitRunning();

    service.stopAsync().awaitTerminated();
    service.stopAsync();
    assertEquals(State.TERMINATED, service.state());
  }

  public void testNoOpServiceStopIdempotenceDoubleWait() throws Exception {
    NoOpService service = new NoOpService();

    service.startAsync().awaitRunning();

              "ServiceManager configured with no services.  Is your application configured"
                  + " properly?",
              new EmptyServiceManagerWarning());
      copy = ImmutableList.of(new NoOpService());
    }
    this.state = new ServiceManagerState(copy);
    this.services = copy;
    WeakReference<ServiceManagerState> stateReference = new WeakReference<>(state);
    for (Service service : copy) {