Чтение на Android

//Запуск фонового потока
new ParseTask().execute("https://www.thingopen.ru/feeds.php?uskey=XXXXXX&basekey=YYYYYYY&results=1");

// Сам поток
private class ParseTask extends AsyncTask  {
        HttpURLConnection urlConnection = null;

        @Override
        protected String doInBackground(String... params) {
            try {
                URL url = new URL(params[0]);
                urlConnection = (HttpURLConnection) url.openConnection();
                urlConnection.setRequestMethod("GET");
                urlConnection.setConnectTimeout(5000);
                urlConnection.connect();
                InputStream inputStream = urlConnection.getInputStream();
                StringBuilder buffer = new StringBuilder();
                BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
                String line;
                while ((line = reader.readLine()) != null) {
                    buffer.append(line);
                }
                resultJson = buffer.toString();
            } catch (Exception e) {
                e.printStackTrace();
            }
             urlConnection.disconnect();
            return resultJson;
       }

        @Override
        protected void onPostExecute(String strJson) {
            super.onPostExecute(strJson);
            // выводим целиком полученную json-строку
            Log.e("answer", strJson);
        }
    }