val proxyConnectRequest =
      Request.Builder()
        .url(route.address.url)
        .method("CONNECT", null)
        .header("Host", route.address.url.toHostHeader(includeDefaultPort = true))
        .header("Proxy-Connection", "Keep-Alive") // For HTTP/1.0 proxies like Squid.
        .header("User-Agent", USER_AGENT)
        .build()

    val fakeAuthChallengeResponse =
      Response.Builder()

    // Make a range request.
    val request =
      Request.Builder()
        .url(server.url("/"))
        .header("Range", "bytes=0-")
        .build()
    val call = client.newCall(request)

    // The response is not decompressed.
    val response = call.execute()
    assertThat(response.header("Content-Encoding")).isEqualTo("gzip")
    assertThat(response.body.source().readByteString()).isEqualTo(

    // Body contains nothing.
    assertThat(response.body.bytes().size).isEqualTo(0)
    assertThat(response.body.contentLength()).isEqualTo(0)

    // Content-Length header doesn't exist in a 204 response.
    assertThat(response.header("content-length")).isNull()
    assertThat(response.code).isEqualTo(204)
    val request = server.takeRequest()
    assertThat(request.requestLine).isEqualTo("GET /foo HTTP/1.1")
  }

  /**
   * Returns true if this cookie's domain should be interpreted as a single host name, or false if
   * it should be interpreted as a pattern. This flag will be false if its `Set-Cookie` header
   * included a `domain` attribute.
   *
   * For example, suppose the cookie's domain is `example.com`. If this flag is true it matches

    This includes overly-long domain names (longer than 253 characters), overly-long labels (more
    than 63 characters between dots), and empty labels.
 *  New: Don't include the `Content-Length` header in multipart bodies. Servers must delimit
    OkHttp's request bodies using the boundary only. (This change makes OkHttp more consistent with
    browsers and other HTTP clients.)

          nextRequest = route.address.proxyAuthenticator.authenticate(route, response)
            ?: throw IOException("Failed to authenticate with proxy")

          if ("close".equals(response.header("Connection"), ignoreCase = true)) {
            return nextRequest
          }
        }

        else -> throw IOException("Unexpected response code for CONNECT: ${response.code}")
      }
    }
  }

  @JvmStatic val isGraalVmImage = System.getProperty("org.graalvm.nativeimage.imagecode") != null

  @JvmStatic
  fun headerEntries(vararg elements: String?): List<Header> {
    return List(elements.size / 2) { Header(elements[it * 2]!!, elements[it * 2 + 1]!!) }
  }

  @JvmStatic
  fun repeat(
    c: Char,
    count: Int,
  ): String {
    val array = CharArray(count)
    Arrays.fill(array, c)

	public fun close ()V
	public final fun code ()I
	public final fun handshake ()Lokhttp3/Handshake;
	public final fun header (Ljava/lang/String;)Ljava/lang/String;
	public final fun header (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
	public static synthetic fun header$default (Lokhttp3/Response;Ljava/lang/String;Ljava/lang/String;ILjava/lang/Object;)Ljava/lang/String;
	public final fun headers ()Lokhttp3/Headers;

  for (i in 0 until length) {
    val c = this[i]
    if (c <= '\u001f' || c >= '\u007f') {
      return i
    }
  }
  return -1
}

/** Returns true if we should void putting this this header in an exception or toString(). */
internal fun isSensitiveHeader(name: String): Boolean {
  return name.equals("Authorization", ignoreCase = true) ||
    name.equals("Cookie", ignoreCase = true) ||

    extraNetworkInterceptor =
      Interceptor { chain: Interceptor.Chain ->
        chain.proceed(
          chain.request()
            .newBuilder()
            .header("Content-Length", "2")
            .header("Content-Type", "text/plain-ish")
            .build(),
        )
      }
    server.enqueue(MockResponse())
    client.newCall(
      request()
        .post("Hi?".toRequestBody(PLAIN))