java.io.IOException: Service not Available > Geocoder

public static JSONObject getLocationInfo(String address) {


		HttpGet httpGet = new HttpGet("http://maps.google.com/maps/api/geocode/json?address=" +address+"&ka&sensor=false");
		HttpClient client = new DefaultHttpClient();
		HttpResponse response;
		StringBuilder stringBuilder = new StringBuilder();


		try {
			response = client.execute(httpGet);
			HttpEntity entity = response.getEntity();
			InputStream stream = entity.getContent();
			int b;
			while ((b = stream.read()) != -1) {
				stringBuilder.append((char) b);
			}
		} catch (ClientProtocolException e) {
		} catch (IOException e) {
		}


		JSONObject jsonObject = new JSONObject();
		try {
			jsonObject = new JSONObject(stringBuilder.toString());
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


		return jsonObject;
	}
	
	public static GeoPoint getGeoPoint(JSONObject jsonObject) {


		Double lon = new Double(0);
		Double lat = new Double(0);


		try {


			lon = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
				.getJSONObject("geometry").getJSONObject("location")
				.getDouble("lng");


			lat = ((JSONArray)jsonObject.get("results")).getJSONObject(0)
				.getJSONObject("geometry").getJSONObject("location")
				.getDouble("lat");


		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


		return new GeoPoint((int) (lat * 1E6), (int) (lon * 1E6));


	}




GeoPoint srcGeoPoint =getGeoPoint(getLocationInfo(fromAddress.replace("\n"," ").replace(" ", "%20")));
			GeoPoint destGeoPoint =getGeoPoint(getLocationInfo(CalDescription.toAddress.replace("\n"," ").replace(" ", "%20")));