Client

String data = new String(buf, 0, readInput);
            System.out.println(data);

            Gson gson = new GsonBuilder().setPrettyPrinting()
                    .registerTypeAdapter(ClientInfo.class, new ClientInfoDeserializer())
                    .create();
            JsonParser jsonParser = new JsonParser();
            JsonObject jsonObject = (JsonObject) jsonParser.parse(data);
            ClientInfo clientInfo = gson.fromJson(jsonObject, ClientInfo.class);