if (previous != null) hostnameCount = previous;
    if (hostnameCount.incrementAndGet() > 100) return;

    Request request = new Request.Builder()
        .url(url)
        .build();
    try (Response response = client.newCall(request).execute()) {
      String responseSource = response.networkResponse() != null ? ("(network: "
          + response.networkResponse().code()
          + " over "

 * server's hostname and port. If an explicit proxy is requested (or [no proxy][Proxy.NO_PROXY] is
 * explicitly requested), this also includes that proxy information. For secure connections the
 * address also includes the SSL socket factory, hostname verifier, and certificate pinner.
 *
 * HTTP requests that share the same [Address] may also share the same [Connection].
 */
class Address(

    // No authorization header for the first request...
    var request = server.takeRequest()
    assertThat(request.headers["Authorization"]).isNull()

    // ...but the three requests that follow requests include an authorization header.
    for (i in 0..2) {
      request = server.takeRequest()
      assertThat(request.requestLine).isEqualTo("GET / HTTP/1.1")
      assertThat(request.headers["Authorization"])

  /**
   * When we need a new thread to run tasks, we call [Backend.execute]. A few microseconds later we
   * expect a newly-started thread to call [Runnable.run]. We shouldn't request new threads until
   * the already-requested ones are in service, otherwise we might create more threads than we need.
   *
   * We use [executeCallCount] and [runCallCount] to defend against starting more threads than we

   *
   * Use the `request` of the [networkResponse] field to get the wire-level request that was
   * transmitted. In the case of follow-ups and redirects, also look at the `request` of the
   * [priorResponse] objects, which have its own [priorResponse].
   */
  @get:JvmName("request") val request: Request,
  /** Returns the HTTP protocol, such as [Protocol.HTTP_1_1] or [Protocol.HTTP_1_0]. */

  private var contextSwitchCount = 0

  /** Guarded by [TaskRunner.lock]. */
  private var activeThreads = 0

  /** A task runner that posts tasks to this fake. Tasks won't be executed until requested. */
  val taskRunner: TaskRunner =
    TaskRunner(
      object : TaskRunner.Backend {
        override fun execute(
          taskRunner: TaskRunner,
          runnable: Runnable,
        ) {

     * certificate authority is not possible.
     *
     * The server’s TLS certificate still must match the requested hostname. For example, if the
     * certificate is issued to `example.com` and the request is to `localhost`, the connection will
     * fail. Use a custom [HostnameVerifier] to ignore such problems.
     *

        return false // No more requests on this socket.
      }

      val request = readRequest(socket, source, sink, sequenceNumber)
      atomicRequestCount.incrementAndGet()
      requestQueue.add(request)

      if (request.failure != null) {
        return false // Nothing to respond to.
      }

      val response = dispatcher.dispatch(request)

          sink.writeUtf8("Hello request!")
          sink.close()
        }

        override fun isDuplex(): Boolean {
          return true
        }
      }
    val request =
      request()
        .post(asyncRequestBody)
        .build()
    val response = client.newCall(request).execute()
    Assumptions.assumeTrue(response.protocol == Protocol.HTTP_2)

   * this path's segments. For example, if this path is `/foo` this cookie matches requests to
   * `/foo` and `/foo/bar`, but not `/` or `/football`.
   */
  @get:JvmName("path") val path: String,
  /** Returns true if this cookie should be limited to only HTTPS requests. */
  @get:JvmName("secure") val secure: Boolean,
  /**