@Throws(IOException::class)
  override fun createServerSocket(): ServerSocket {
    val serverSocket = delegate.createServerSocket()
    return configureServerSocket(serverSocket)
  }

  @Throws(IOException::class)
  override fun createServerSocket(port: Int): ServerSocket {
    val serverSocket = delegate.createServerSocket(port)
    return configureServerSocket(serverSocket)
  }

    }
  }

  private fun startTlsServer(): InetSocketAddress {
    val serverSocketFactory = ServerSocketFactory.getDefault()
    serverSocket = serverSocketFactory.createServerSocket()
    val serverAddress = InetAddress.getByName("localhost")
    serverSocket!!.bind(InetSocketAddress(serverAddress, 0), 50)
    return InetSocketAddress(serverAddress, serverSocket!!.localPort)
  }

    check(!shutdown) { "shutdown() already called" }
    if (started) return
    started = true

    this._inetSocketAddress = inetSocketAddress

    serverSocket = serverSocketFactory!!.createServerSocket()

    // Reuse if the user specified a port
    serverSocket!!.reuseAddress = inetSocketAddress.port != 0
    serverSocket!!.bind(inetSocketAddress, 50)

    portField = serverSocket!!.localPort