val uselessSocketFactory: SocketFactory =
      object : SocketFactory() {
        override fun createSocket(): Socket {
          throw IllegalArgumentException("useless")
        }

        override fun createSocket(
          host: InetAddress,
          port: Int,
        ): Socket? = null

        override fun createSocket(
          address: InetAddress,
          port: Int,
          localAddress: InetAddress,