Unknown Reason for Runtime Error - google-maps

Question

I was starting out with google map Api's. Following some examples on the internet.I came up with these code. I was able to get the Json code quite easily by crating HttpURLCOnnection but somehow I am getting a runtime error.Somehow i am unable to create a Json Object.I searched quite a bit,but didn't find any relation between JSONObject and Runtimeerror
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.Bundle;
public class Parser {
public static void main(String args[])
{
String response="";
int lat1=20270000,lon1=85520000,lat2=20264500,lon2=85835500;
String urlString="https://maps.googleapis.com/maps/api/directions/json?origin="+Double.toString((double)lat1/1E6)+","+Double.toString((double) lon1/1E6)+"&destination="+Double.toString((double)lat2/1E6)+","+Double.toString((double) lon2/1E6)+"&sensor=true";
HttpURLConnection urlConnection= null;
URL url = null;
try{
url = new URL(urlString.toString());
urlConnection=(HttpURLConnection)url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.connect();
InputStream inStream = urlConnection.getInputStream();
BufferedReader bReader = new BufferedReader(new InputStreamReader(inStream));
String temp;
while((temp = bReader.readLine()) != null){
response += temp;
}
System.out.println(response);
bReader.close();
inStream.close();
urlConnection.disconnect();
}
catch(Exception e){}
ArrayList<Bundle> list = new ArrayList<Bundle>();
try {
System.out.println(response.toString()); // uptil here every thing is fine..... I am getting correct Json text.
JSONObject jsonObject = new JSONObject(response); //I am getting a runtime error in this line. Can't figure out the reason
System.out.println(jsonObject);
JSONArray routesArray= jsonObject.getJSONArray("routes");
JSONObject route = routesArray.getJSONObject(0);
JSONArray legs = route.getJSONArray("legs");
JSONObject leg = legs.getJSONObject(0);
JSONObject durationObject = leg.getJSONObject("duration");
String duration = durationObject.getString("text");
System.out.println("egferg"+duration);
}
catch(Exception e1){e1.printStackTrace();}
}
}