serverSocketFactory_
          ?: (ServerSocketFactory.getDefault()!!.also { this.serverSocketFactory_ = it })

      val serverSocket =
        serverSocketFactory
          .createServerSocket()!!
          .also { this.serverSocket = it }

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