return super.buildTrustRootIndex(trustManager)
  }

  override fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<Protocol>,
  ) {
    // No TLS extensions if the socket class is custom.
    socketAdapters
      .find { it.matchesSocket(sslSocket) }
      ?.configureTlsExtensions(sslSocket, hostname, protocols)
  }

  }

  /**
   * Configure TLS extensions on `sslSocket` for `route`.
   */
  open fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<@JvmSuppressWildcards Protocol>,
  ) {
  }

  /** Called after the TLS handshake to release resources allocated by [configureTlsExtensions]. */
  open fun afterHandshake(sslSocket: SSLSocket) {
  }

      sslSocketFactory.createSocket(
        socket,
        socket.inetAddress.hostAddress,
        socket.port,
        true,
      ) as SSLSocket
    sslSocket.useClientMode = false
    Platform.get().configureTlsExtensions(sslSocket, null, listOf(Protocol.HTTP_2))
    sslSocket.startHandshake()
    return sslSocket
  }

  override fun onStream(stream: Http2Stream) {
    try {
      val requestHeaders = stream.takeHeaders()

    connectionSpec: ConnectionSpec,
  ) {
    val address = route.address
    var success = false
    try {
      if (connectionSpec.supportsTlsExtensions) {
        Platform.get().configureTlsExtensions(sslSocket, address.url.host, address.protocols)
      }

      // Force handshake. This can throw!
      sslSocket.startHandshake()
      // block for session establishment

            sslSocket.wantClientAuth = true
          }
          openClientSockets.add(sslSocket)

          if (protocolNegotiationEnabled) {
            Platform.get().configureTlsExtensions(sslSocket, null, protocols)
          }

          sslSocket.startHandshake()

          // Wait until after handshake to grab the buffered socket
          socket = MockWebServerSocket(sslSocket)