}

      // Success! Save the handshake and the ALPN protocol.
      val maybeProtocol =
        if (connectionSpec.supportsTlsExtensions) {
          Platform.get().getSelectedProtocol(sslSocket)
        } else {
          null
        }
      socket = sslSocket
      source = sslSocket.source().buffer()
      sink = sslSocket.sink().buffer()