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Android Threads and Services But Wait There's More! Messengers and Handlers: Service

i get an error 'wrong coordinates', how do i fix that?

I write the following code and get error Wong coordinates

public class GeolocationService extends Service {
    int mLatitude;
    int mLongitude;

    // some methods omitted

    public IBinder onBind(Intent intent) {
      return null;

  class LocationHandler extends Handler {

    GeolocationService service;

    public LocationHandler(GeolocationService service) {

    public void handleMessage(Message m) {
       switch(m.arg1) {
         case 0: service.mLatitude = service.getLatitude(); break;
         case 1: service.mLongitude = service.getLongitude(); break;