val responseHeaders = response.headers
    assertThat(LinkedHashSet(responseHeaders.values("A"))).isEqualTo(newSet("c", "e"))
    assertThat(LinkedHashSet(responseHeaders.values("a"))).isEqualTo(newSet("c", "e"))
    assertThat(responseHeaders.name(0)).isEqualTo("A")
    assertThat(responseHeaders.value(0)).isEqualTo("c")
    assertThat(responseHeaders.name(1)).isEqualTo("B")

        sink.writeUtf8(StatusLine(protocol, code, message).toString()).writeByte('\n'.code)
        sink.writeDecimalLong((responseHeaders.size + 2).toLong()).writeByte('\n'.code)
        for (i in 0 until responseHeaders.size) {
          sink.writeUtf8(responseHeaders.name(i))
            .writeUtf8(": ")
            .writeUtf8(responseHeaders.value(i))
            .writeByte('\n'.code)
        }
        sink.writeUtf8(SENT_MILLIS)

    try (Response response = client.newCall(request).execute()) {
      if (!response.isSuccessful()) {
        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);
      }

      var unexpectedValues = false

      // Parse each header.
      for (i in 0 until responseHeaders.size) {
        if (!responseHeaders.name(i).equals(HEADER_WEB_SOCKET_EXTENSION, ignoreCase = true)) {
          continue // Not a header we're interested in.
        }
        val header = responseHeaders.value(i)

        // Parse each extension.
        var pos = 0
        while (pos < header.length) {

      if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

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

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

    client.newCall(request)
      .execute()
      .use { response ->
        if (!response.isSuccessful) {
          val responseHeaders = response.headers
          for (i in 0 until responseHeaders.size) {
            println(responseHeaders.name(i) + ": " + responseHeaders.value(i))
          }
          throw IOException("Unexpected code $response")
        }
        println(response.body.string())

  }

  @Test
  fun messagesCompressedWhenConfigured() {
    val headers = headersOf("Sec-WebSocket-Extensions", "permessage-deflate")
    client.initWebSocket(random, responseHeaders = headers)
    server.initWebSocket(random, responseHeaders = headers)
    val message = repeat('a', RealWebSocket.DEFAULT_MINIMUM_DEFLATE_SIZE.toInt())
    server.webSocket!!.send(message)
    taskFaker.runTasks()

   * no data frames to follow.
   *
   * @param streamId server-initiated stream ID: an even number.
   * @param responseHeaders minimally includes `:status`.
   * @param last when true, there is no response data.
   */
  fun onHeaders(
    streamId: Int,
    responseHeaders: List<Header>,
    last: Boolean,
  ): Boolean

  /**

        ) = TODO()
      }
  }

  private fun newCookieHandler(): CookieHandler {
    return object : CookieHandler() {
      override fun put(
        uri: URI?,
        responseHeaders: MutableMap<String, MutableList<String>>?,
      ) = TODO()

      override fun get(
        uri: URI?,
        requestHeaders: MutableMap<String, MutableList<String>>?,

   *     response body exists and will be written immediately.
   */
  @Throws(IOException::class)
  fun writeHeaders(
    responseHeaders: List<Header>,
    outFinished: Boolean,
    flushHeaders: Boolean,
  ) {
    lock.assertNotHeld()

    var flushHeaders = flushHeaders
    this.withLock {
      this.hasResponseHeaders = true