ResultReceiver.send throws nullpointerexception

I have searched for an answer but I couldn't find one. I am reverse geocoding latitude and latitude in IntentService then when I try to ResultReceiver.send it throws nullpointerexception. I debugged the arguments and they contain the address and the result code just like they are supposed to. I searched on any uninitialized objects but I couldn't fine one. Can anyone give me a clue on what's going on?

private void deliverResultToReceiver(int resultCode, String message) {
        Bundle bundle = new Bundle();
        try {
            if (message != null || "".equals(message))
        bundle.putString(Constants.RESULT_DATA_KEY, message);
                mReceiver.send(resultCode, bundle);
            } catch (NullPointerException npe) {
                // TODO Auto-generated catch block
                npe.printStackTrace();
            }
    }