return OkHttpClient.Builder()
    .connectionSpecs(listOf(*specs))
    .build()
}

private fun sendRequest(
  client: OkHttpClient,
  url: String,
) {
  System.out.printf("%-40s ", url)
  System.out.flush()
  println(Platform.get())
  val request =
    Request.Builder()
      .url(url)
      .build()
  try {
    client.newCall(request).execute().use { response ->

    if (!testData.scheme.isEmpty() && !HTTP_URL_SCHEMES.contains(testData.scheme)) {
      System.err.println("Ignoring unsupported scheme ${testData.scheme}")
      return
    }

    if (!testData.base!!.startsWith("https:") &&
      !testData.base!!.startsWith("http:") &&
      testData.base != "about:blank"
    ) {
      System.err.println("Ignoring unsupported base ${testData.base}")
      return
    }

    try {

    for (callback in callbacks) {
      if (callback is PasswordCallback) {
        val console = System.console()

        if (console != null) {
          callback.password = console.readPassword(callback.prompt)
        } else {
          System.err.println(callback.prompt)
          callback.password = System.`in`.bufferedReader().readLine().toCharArray()
        }
      } else {

    val timeoutMillis = TimeUnit.NANOSECONDS.toMillis(System.nanoTime()) + TIMEOUT_MILLIS
    while (true) {
      val i = responses.iterator()
      while (i.hasNext()) {
        val recordedResponse = i.next()
        if (recordedResponse.request.url.equals(url)) {
          i.remove()
          return recordedResponse
        }
      }
      val nowMillis = TimeUnit.NANOSECONDS.toMillis(System.nanoTime())

    )
    val startNanos = System.nanoTime()
    val connection = server.url("/").toUrl().openConnection()
    connection.setDoOutput(true)
    connection.getOutputStream().write("ABCDEF".toByteArray(StandardCharsets.UTF_8))
    val inputStream = connection.getInputStream()
    assertThat(inputStream.read()).isEqualTo(-1)
    val elapsedNanos = System.nanoTime() - startNanos

      val headers = response.headers
      for ((name, value) in headers) {
        println("$name: $value")
      }
      println()
    }

    // Stream the response to the System.out as it is returned from the server.
    val out = System.out.sink()
    val source = response.body.source()
    while (!source.exhausted()) {
      out.write(source.buffer, source.buffer.size)
      out.flush()
    }

1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

2. Run an Emulator using Android Studio or from command line.

```

) : EventListener(),
  EventListener.Factory {
  private var startNs: Long? = null

  override fun create(call: Call): EventListener = this

  override fun callStart(call: Call) {
    startNs = System.nanoTime()

    logWithTime("callStart: ${call.request()}")

    delegate.callStart(call)
  }

  override fun proxySelectStart(
    call: Call,
    url: HttpUrl,
  ) {

  val majorVersion: Int by lazy {
    when (val jvmSpecVersion = getJvmSpecVersion()) {
      "1.8" -> 8
      else -> jvmSpecVersion.toInt()
    }
  }

  fun getJvmSpecVersion(): String {
    return System.getProperty("java.specification.version", "unknown")
  }

        Headers responseHeaders = response.headers();
        for (int i = 0; i < responseHeaders.size(); i++) {
          System.out.println(responseHeaders.name(i) + ": " + responseHeaders.value(i));
        }

        throw new IOException("Unexpected code " + response);
      }

      System.out.println(response.body().string());
    }
  }

  public static void main(String... args) throws Exception {