if e != nil {
			opts.Trace("listenCfg.Listen: " + e.Error())

			listenErrs[i] = e
			continue
		}
		opts.Trace("adding listener to " + l.Addr().String())

		listeners = append(listeners, l)
	}

	if len(listeners) == 0 {
		// No listeners initialized, no need to continue
		return listener, listenErrs
	}
	listeners = slices.Clip(listeners)

	ctx, cancel := context.WithCancel(ctx)

	// Create new HTTP listener.
	var listener *httpListener
	listener, listenErrs := newHTTPListener(
		listenCtx,
		srv.Addrs,
		srv.TCPOptions,
	)

	var interfaceFound bool
	for i := range listenErrs {
		if listenErrs[i] != nil {
			listenErrCallback(srv.Addrs[i], listenErrs[i])
		} else {
			interfaceFound = true
		}
	}
	if !interfaceFound {

		listener, listenErrs := newHTTPListener(t.Context(),
			testCase.serverAddrs,
			TCPOptions{},
		)
		for i, expectedListenErr := range testCase.expectedListenErrs {
			if !expectedListenErr {
				if listenErrs[i] != nil {
					t.Fatalf("Test %d:, listenErrs[%d] error: expected = <nil>, got = %v", testIdx+1, i, listenErrs[i])
				}
			} else if listenErrs[i] == nil {

   * 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.

   * 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.

		}
		m := mux.NewRouter()
		m.Handle(RoutePath, manager.Handler(dummyRequestValidate))
		res.Managers = append(res.Managers, manager)
		res.Servers = append(res.Servers, startHTTPServer(listeners[i], m))
		res.Listeners = append(res.Listeners, listeners[i])
		res.Mux = append(res.Mux, m)
	}
	close(ready)
	for _, m := range res.Managers {
		for _, remote := range m.Targets() {

    private final AtomicLong totalTimeInOpen = new AtomicLong(0);
    private final AtomicLong openStateStartTime = new AtomicLong(0);

    // Event listeners
    private final List<CircuitBreakerListener> listeners = new CopyOnWriteArrayList<>();

    // Configuration
    private volatile int failureThreshold;
    private final int successThreshold;
    private final long resetTimeoutMillis;

 */
package okhttp3

/**
 * A special [EventListener] for testing the mechanics of event listeners.
 *
 * Each instance processes a single event on [call], and then adds a successor [EventListenerRelay]
 * on the same [call] to process the next event.
 *
 * By forcing the list of listeners to change after every event, we can detect if buggy code caches
 * a stale [EventListener] in a field or local variable.
 */

        }

        latch.await(5, TimeUnit.SECONDS);
        executor.shutdown();

        // Verify all listeners were added
        assertEquals(numThreads, fesenClient.onConnectListenerList.size());
    }

    /**
     * Test: Thread-safe listener invocation during connection
     * Verifies that listeners can be added while connect() is executing
     */
    @Test

    exec.shutdown();
    exec.awaitTermination(100, MILLISECONDS);
  }

  /**
   * Tests that all listeners complete, even if they were added before or after the future was
   * finishing. Also acts as a concurrency test to make sure the locking is done correctly when a
   * future is finishing so that no listeners can be lost.
   */
  public void testAllListenersCompleteSuccessfully()