ftpClient.setControlEncoding(controlEncoding);
            ftpClient.setBufferSize(bufferSize);
            if (passiveNatWorkaround) {
                ftpClient.setPassiveNatWorkaroundStrategy(new NatServerResolverImpl(ftpClient));
            }
            ftpClient.setUseEPSVwithIPv4(useEPSVwithIPv4);

            ftpClient.configure(ftpClientConfig);