Google Distance Matrix not getting distance

I have roughly tried to parse the JSON from Google's Distance matrix. But it is not showing the distance. My GPS location is not 0,0 That i'm sure of.

String distance = getMatrix(latitude,longitude);

My code for the function is:

private String getMatrix(double lat , double lang){

    JSONObject jObj;


    String getdistance = "";
    String strUrl = "http://maps.googleapis.com/maps/api/distancematrix/json?origins=" + Double.toString(my_lat) + "," + Double.toString(my_lang) +
            "&destinations="+ Double.toString(lat) + "," + Double.toString(lang) + "&mode=walking&sensor=false";



    String data = "";
    InputStream reader = null;
    HttpURLCoection urlCoection = null;
    try{
        URL url = new URL(strUrl);


        urlCoection = (HttpURLCoection) url.openCoection();

        urlCoection.coect();

        reader = urlCoection.getInputStream();


        int bRead = -1;
        byte[] buffer = new byte[1024];
        do{
            bRead = reader.read(buffer, 0, 1024);
            if(bRead==-1){
                break;
            }
            data += new String(buffer, 0, bRead);
        }while (true);


        urlCoection.discoect();

    }catch(Exception e){

    }finally{

    }

    try{

        jObj = new JSONObject(data);

        JSONArray rowsArray = jObj.getJSONArray("rows");
        JSONObject rows = rowsArray.getJSONObject(0);



        JSONArray elementsArray = rows.getJSONArray("elements");
        JSONObject newDisTimeOb = elementsArray.getJSONObject(0);

        JSONObject distOb = newDisTimeOb.getJSONObject("distance");
        getdistance = distOb.optString("text").toString();
    }catch (JSONException e) {
        e.printStackTrace();
    }


    retu getdistance;
}