class MyTask extends AsyncTask<String, Void, String> {

    HttpURLConnection urlConnection = null;
    BufferedReader reader = null;
    String resultJson = "";

    @Override
    public String doInBackground(String... urls) {
        try {

            URL url = new URL(**LINK**);
            urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setRequestMethod("GET");
            urlConnection.connect();

            InputStream inputStream = urlConnection.getInputStream();
            StringBuffer buffer = new StringBuffer();
            reader = new BufferedReader(new InputStreamReader(inputStream));

            String line;
            while ((line = reader.readLine()) != null) {
                buffer.append(line);
            }

            resultJson = buffer.toString();

        } catch (Exception e) {
            e.printStackTrace();
        }
        return resultJson;
    }

@Override
    public void onPostExecute(String strJson) {
        super.onPostExecute(strJson);
       try {
            //SONObject dataJsonObj = null;
            JSONObject dataJsonObj = new JSONObject(strJson);
            Log.d(LOG_TAG, strJson);

            Log.d(LOG_TAG, "JSON  " + dataJsonObj);
        } catch (JSONException e) {
            e.printStackTrace();
        }        }

org.json.JSONException: End of input at character 0 of

java.io.FileNotFoundException: http://api.twitch.tv/kraken/streams/ajfafaasf