super("default", executor, Dispatcher.legacyAsync(), subscriberExceptionHandler);
  }

  /**
   * Creates a new AsyncEventBus that will use {@code executor} to dispatch events.
   *
   * @param executor Executor to use to dispatch events. It is the caller's responsibility to shut
   *     down the executor after the last event has been posted to this event bus.
   */
  public AsyncEventBus(Executor executor) {

    compressed file (like a JAR or APK), so compressing its internal data was redundant.

 *  Fix: Call `ProxySelector.connectFailed()` when a connection's initial TCP handshake fails.

 *  Fix: Change the signature of `Dispatcher` to accept a nullable `ExecutorService`. Changing this
    parameter to be non-null was an unintended signature change in OkHttp 4.0.

      if (windowSize != DEFAULT_INITIAL_WINDOW_SIZE) {
        writer.windowUpdate(0, (windowSize - DEFAULT_INITIAL_WINDOW_SIZE).toLong())
      }
    }
    // Thread doesn't use client Dispatcher, since it is scoped potentially across clients via
    // ConnectionPool.
    taskRunner.newQueue().execute(name = connectionName, block = readerRunnable)
  }

    callStart()
    try {
      client.dispatcher.executed(this)
      return getResponseWithInterceptorChain()
    } finally {
      client.dispatcher.finished(this)
    }
  }

  override fun enqueue(responseCallback: Callback) {
    check(executed.compareAndSet(false, true)) { "Already Executed" }

    callStart()
    client.dispatcher.enqueue(AsyncCall(responseCallback))
  }

    setDefault(Method.class, DummySubscriber.subscriberMethod());
    setDefault(SubscriberExceptionContext.class, dummySubscriber.toContext());
    setDefault(Dispatcher.class, Dispatcher.immediate());
  }

  private static class DummySubscriber {

    private final EventBus eventBus = new EventBus();

    @Subscribe
    public void handle(@Nullable Object unused) {}

    val a = client.newBuilder().build()
    assertThat(a.dispatcher).isNotNull()
    assertThat(a.connectionPool).isNotNull()
    assertThat(a.sslSocketFactory).isNotNull()
    assertThat(a.x509TrustManager).isNotNull()

    // Multiple clients share the instances.
    val b = client.newBuilder().build()
    assertThat(b.dispatcher).isSameInstanceAs(a.dispatcher)
    assertThat(b.connectionPool).isSameInstanceAs(a.connectionPool)

          response: Response,
        ) {
          response.close()
        }
      }
    repeat(10_000) {
      okhttp.newCall(Request.Builder().url(server.url("/")).build()).enqueue(callback)
    }
    okhttp.dispatcher.executorService.shutdown()
  }

=== ":material-language-kotlin: Kotlin"
    ```kotlin

        http2Only = true,
        workingOnly = true,
        getOnly = true,
      )
    runBatch(dnsProviders, names)
  } finally {
    bootstrapClient.connectionPool.evictAll()
    bootstrapClient.dispatcher.executorService.shutdownNow()
    bootstrapClient.cache?.close()
  }

  }

  fun finishJob(url: String) {
    val i = calls.iterator()
    while (i.hasNext()) {
      val call = i.next()
      if (call.request.url.toString() == url) {
        i.remove()
        dispatcherTest.dispatcher.finishedAccessor(call)
        return
      }
    }
    throw AssertionError("No such job: $url")
  }

  override fun shutdown() {
    shutdown = true
  }