*/
  private fun enableProtocol(protocol: Protocol) {
    enableTls()
    client =
      client.newBuilder()
        .protocols(listOf(protocol, Protocol.HTTP_1_1))
        .build()
    server.protocols = client.protocols
  }

  private fun enableTls() {
    client =
      client.newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),

      if (post) {
        url(url)
          .cacheUrlOverride(
            url.newBuilder()
              .addQueryParameter("hostname", hostname).build(),
          )
          .post(query.toRequestBody(DNS_MESSAGE))
      } else {
        val encoded = query.base64Url().replace("=", "")
        val requestUrl = url.newBuilder().addQueryParameter("dns", encoded).build()

        url(requestUrl)
      }

      Request.Builder()
        .url("http://httpbin.org/delay/1") // This URL is served with a 1 second delay.
        .build()

    // Copy to customize OkHttp for this request.
    val client1 =
      client.newBuilder()
        .readTimeout(500, TimeUnit.MILLISECONDS)
        .build()
    try {
      client1.newCall(request).execute().use { response ->
        println("Response 1 succeeded: $response")
      }

 * for (Challenge challenge : response.challenges()) {
 *   // If this is preemptive auth, use a preemptive credential.
 *   if (challenge.scheme().equalsIgnoreCase("OkHttp-Preemptive")) {
 *     return response.request().newBuilder()
 *         .header("Proxy-Authorization", "secret")
 *         .build();
 *   }
 * }
 * return null; // Didn't find a preemptive auth scheme.
 * ```
 *
 * ## Reactive Authentication
 *

        .connectTimeout(60, TimeUnit.SECONDS) // Deliberately exacerbate slow fallbacks.
        .dns { dnsResults }
        .fastFallback(true)
        .build()
    url =
      serverIpv4.url("/")
        .newBuilder()
        .host("localhost")
        .build()
  }

  @AfterEach
  internal fun tearDown() {
    serverIpv4.shutdown()
    serverIpv6.shutdown()
  }

  @Test

    platform.expectFailureOnJdkVersion(8)

    val httpClient =
      HttpClient.newBuilder()
        .followRedirects(NORMAL)
        .build()

    server.enqueue(
      MockResponse.Builder()
        .body("hello, Java HTTP Client")
        .build(),
    )

    val request =
      HttpRequest.newBuilder(server.url("/").toUri())
        .header("Accept", "text/plain")
        .build()

          sslSocket.sslParameters = parameters
        }

        return sslSocket
      }
    }

    client =
      client.newBuilder()
        .sslSocketFactory(CustomSSLSocketFactory(client.sslSocketFactory), client.x509TrustManager!!)
        .hostnameVerifier { hostname, session ->
          val s = "hostname: $hostname peerHost:${session.peerHost}"

  }

  private fun enableProtocol(protocol: Protocol) {
    enableTls()
    client =
      client.newBuilder()
        .protocols(listOf(protocol, Protocol.HTTP_1_1))
        .build()
    server.protocols = client.protocols
  }

  private fun enableTls() {
    client =
      client.newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),

   * [newBuilder].
   *
   * @suppress this method breaks Dokka! https://github.com/Kotlin/dokka/issues/2473
   */
  fun tag(): Any? = tag<Any>()

  /**
   * Returns the tag attached with [type] as a key, or null if no tag is attached with that
   * key.
   */
  fun <T> tag(type: Class<out T>): T? = tag(type.kotlin)

  fun newBuilder(): Builder = Builder(this)

  /**

          handshakeCertificates.sslSocketFactory(),
          handshakeCertificates.trustManager,
        )
        .dns(dns)
        .build()

    server.enqueue(MockResponse())

    val url = server.url("/").newBuilder().host("localhost.localdomain").build()
    val call = client.newCall(Request(url = url))
    val response = call.execute()
    assertThat(response.isSuccessful).isTrue()

    val recordedRequest = server.takeRequest()