if l.Listener != nil {
			listenerTyped := &listener.Listener{}
			// Support v2 or v3 in config dump. See ads.go:RequestedTypes for more info.
			l.Listener.TypeUrl = v3.ListenerType
			err = l.Listener.UnmarshalTo(listenerTyped)
			if err != nil {
				return nil, fmt.Errorf("unmarshal listener: %v", err)
			}
			listeners = append(listeners, listenerTyped)
		}
	}
	if len(listeners) == 0 {

				}
			} else if listenErrs[i] == nil {
				t.Fatalf("Test %d: listenErrs[%d]: expected = %v, got = <nil>", testIdx+1, i, expectedListenErr)
			}
		}
		if listener != nil {
			listener.Close()
		}
	}
}

func TestHTTPListenerStartClose(t *testing.T) {
	if runtime.GOOS == "windows" {
		t.Skip()
	}

	nonLoopBackIP := getNonLoopBackIP(t)

  private static final ListenerCallQueue.Event<Listener> STARTING_EVENT =
      new ListenerCallQueue.Event<Listener>() {
        @Override
        public void call(Listener listener) {
          listener.starting();
        }

        @Override
        public String toString() {
          return "starting()";
        }
      };
  private static final ListenerCallQueue.Event<Listener> RUNNING_EVENT =

    RecordingListener listener = new RecordingListener();
    manager.addListener(listener, directExecutor());
    manager.startAsync().awaitHealthy();
    assertTrue(manager.isHealthy());
    assertTrue(listener.healthyCalled);
    assertFalse(listener.stoppedCalled);
    assertTrue(listener.failedServices.isEmpty());
    manager.stopAsync().awaitStopped();

    checkNotNull(unit);
    return get();
  }

  @Override
  public void addListener(Runnable runnable, Executor executor) {
    Listener listener = new Listener(runnable, executor);
    if (isDone()) {
      listener.execute();
    } else {
      listeners.add(listener);
    }
  }

  @CanIgnoreReturnValue
  protected boolean setException(Throwable throwable) {
    checkNotNull(throwable);

    RecordingListener listener = new RecordingListener();
    manager.addListener(listener, directExecutor());
    manager.startAsync().awaitHealthy();
    assertTrue(manager.isHealthy());
    assertTrue(listener.healthyCalled);
    assertFalse(listener.stoppedCalled);
    assertTrue(listener.failedServices.isEmpty());
    manager.stopAsync().awaitStopped();

  private static final ListenerCallQueue.Event<Listener> HEALTHY_EVENT =
      new ListenerCallQueue.Event<Listener>() {
        @Override
        public void call(Listener listener) {
          listener.healthy();
        }

        @Override
        public String toString() {
          return "healthy()";
        }
      };
  private static final ListenerCallQueue.Event<Listener> STOPPED_EVENT =

   * across calls to multiple listeners. Specifically, a given listener will have its callbacks
   * invoked in the same order as the underlying service enters those states. Additionally, at most
   * one of the listener's callbacks will execute at once. However, multiple listeners' callbacks
   * may execute concurrently, and listeners may execute in an order different from the one in which
   * they were registered.

            ResolutionNode node,
            Artifact replacement,
            VersionRange newRange) {
        for (ResolutionListener listener : listeners) {
            switch (event) {
                case ResolutionListener.TEST_ARTIFACT:
                    listener.testArtifact(node.getArtifact());
                    break;
                case ResolutionListener.PROCESS_CHILDREN:

    public void registerListener(@Nonnull Listener listener) {
        listeners.add(nonNull(listener));
    }

    @Override
    public void unregisterListener(@Nonnull Listener listener) {
        listeners.remove(nonNull(listener));
    }

    @Nonnull
    @Override
    public Collection<Listener> getListeners() {
        return Collections.unmodifiableCollection(listeners);
    }

    //