object : EventListener() {
        var socket: SSLSocket? = null
        var closed = false

        override fun connectionAcquired(
          call: Call,
          connection: Connection,
        ) {
          socket = connection.socket() as SSLSocket
        }

        override fun requestHeadersStart(call: Call) {
          if (closed) {
            throw IOException("fake socket failure")
          }

    tag: Long,
    forceConstructed: Boolean? = null,
  ): BasicDerAdapter<T> {
    val codec =
      object : BasicDerAdapter.Codec<T> {
        override fun decode(reader: DerReader): T = fromDer(reader)

        override fun encode(
          writer: DerWriter,
          value: T,
        ) {
          toDer(writer, value)
          if (forceConstructed != null) {

    }
  }
}

object LoggingCallback : FutureCallback<SimpleHttpResponse> {
  override fun completed(response: SimpleHttpResponse) {
  }

  override fun failed(ex: Exception) {
    println("Failed: $ex")
  }

  override fun cancelled() {
    println("Cancelled")
  }

        return object : RequestBody() {
          override fun contentLength(): Long = body.utf8Size()

          override fun contentType(): MediaType? = null

          override fun writeTo(sink: BufferedSink) {
            sink.writeUtf8(body)
          }
        }
      }
    },

    END_OF_STREAM {
      override fun setBody(
        response: MockResponse.Builder,
        content: Buffer?,

      object : X509TrustManager {
        override fun checkClientTrusted(
          chain: Array<X509Certificate>,
          authType: String,
        ) {}

        override fun checkServerTrusted(
          chain: Array<X509Certificate>,
          authType: String,
        ) {}

        override fun getAcceptedIssuers(): Array<X509Certificate> = arrayOf()
      }

    continuation.invokeOnCancellation {
      this.cancel()
    }
    this.enqueue(
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          continuation.resumeWithException(e)
        }

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          continuation.resume(response) {

  fun assertResponseCookies(vararg cookies: String?) {
    assertThat(takeResponseCookies().map(Cookie::toString)).containsExactly(*cookies)
  }

  override fun saveFromResponse(
    url: HttpUrl,
    cookies: List<Cookie>,
  ) {
    responseCookies.add(cookies)
  }

  override fun loadForRequest(url: HttpUrl): List<Cookie> {
    return if (requestCookies.isEmpty()) emptyList() else requestCookies.removeFirst()
  }

    proxies.add(proxy)
    return this
  }

  override fun select(uri: URI): List<Proxy> {
    // Don't handle 'socket' schemes, which the RI's Socket class may request (for SOCKS).
    return if (uri.scheme == "http" || uri.scheme == "https") proxies else listOf(Proxy.NO_PROXY)
  }

  override fun connectFailed(
    uri: URI,
    sa: SocketAddress,
    ioe: IOException,
  ) {
  }

  private val maxRatio: Long,
) {
  private var inputByteCount = 0L
  private var outputByteCount = 0L

  fun wrapInput(source: Source): Source {
    return object : ForwardingSource(source) {
      override fun read(
        sink: Buffer,
        byteCount: Long,
      ): Long {
        val result = super.read(sink, byteCount)
        if (result == -1L) return result
        inputByteCount += result

        else -> error("unexpected signature algorithm: ${signature.algorithm}")
      }
    }

  // Avoid Long.hashCode(long) which isn't available on Android 5.
  override fun hashCode(): Int {
    var result = 0
    result = 31 * result + version.toInt()
    result = 31 * result + serialNumber.hashCode()
    result = 31 * result + signature.hashCode()