No list returned while retrieving scores from Scoreloop server

Question

I am trying to retrieve score of the device user from the Scoreloop server. It's an AndEngine game. I tried the following:

observer = new RequestControllerObserver() {
        @Override
        public void requestControllerDidFail(RequestController arg0,
                Exception arg1) {
            // TODO Auto-generated method stub

        }

        @Override
        public void requestControllerDidReceiveResponse(
                RequestController requestController) {
            // TODO Auto-generated method stub
            myScoresController = (ScoresController) requestController;
            myScoresController.setSearchList(SearchList
                    .getGlobalScoreSearchList());
            myScoresController.setMode(mode);
            myScoresController.setRangeLength(20);
            myScoresController.loadRangeForUser(Session.getCurrentSession()
                    .getUser());
            Log.i("score", "" + myScoresController.getScores().get(0).getResult());
            // List<Score> retrievedScores = myScoresController.getScores();
        }

The Log.i() is not even showed up. I also tried this:

observer = new RequestControllerObserver() {

        @Override
        public void requestControllerDidFail(RequestController arg0,
                Exception arg1) {
            // TODO Auto-generated method stub

        }

        @Override
        public void requestControllerDidReceiveResponse(
                RequestController requestController) {
            // TODO Auto-generated method stub
        }
            myScoresController = new ScoresController(observer);
            myScoresController.setSearchList(SearchList
                    .getGlobalScoreSearchList());
            myScoresController.setMode(mode);
            myScoresController.setRangeLength(20);
            myScoresController.loadRangeForUser(Session.getCurrentSession()
                    .getUser());
            Log.i("score", "" + myScoresController.getScores().get(0).getResult());
            // List<Score> retrievedScores = myScoresController.getScores();

I am trying to get the first element of the list and then the score result. But there is no list coming up. The error shown as:

java.lang.IndexOutOfBoundsException
java.util.Collections$EmptyList.get(Collections.java:102)

But I didn't try both of the above together. There certainly is a mistake But I don't see it.

Edit:

The whole class where I am using it is as follows:

public class ScoreLoopUpdater implements Runnable {
private double score;
private int mode;
private RequestControllerObserver observer;
private ScoresController myScoresController = null;

public ScoreLoopUpdater(double _score, int _mode) {
    this.score = _score;
    this.mode = _mode;
}

public void run() {
    getGlobalHighscore();
    ScoreloopManagerSingleton.get().onGamePlayEnded(
            score, mode);
}

private void getGlobalHighscore() {
        //the above codes including observer go inside here.
    }

I am calling from a scene using this:

ScoreLoopUpdater scoreLoopUpdater = new ScoreLoopUpdater(theScore, theMode);
activity.runOnUiThread(scoreLoopUpdater);

Answer 1

After gesturing with some examples I've finally come up with the proper way:

private void getGlobalHighscore() {
    observer = new RequestControllerObserver() {

        @Override
        public void requestControllerDidFail(RequestController arg0,
                Exception arg1) {
            // TODO Auto-generated method stub

        }

        @Override
        public void requestControllerDidReceiveResponse(
                RequestController requestController) {
            // TODO Auto-generated method stub
            final ScoresController myScoresController = (ScoresController) requestController;
            Log.i("score", "" + myScoresController.getScores().get(0).getResult());
            // List<Score> retrievedScores = myScoresController.getScores();
        }

    };
    ScoresController myScoresController = new ScoresController(observer);
    myScoresController.setSearchList(SearchList
            .getGlobalScoreSearchList());
    myScoresController.setMode(mode);
    myScoresController.setRangeLength(20);
    myScoresController.loadRangeForUser(Session.getCurrentSession()
            .getUser());
}

Only getScores() should be called inside requestControllerDidReceiveResponse function, which means getting the scores after receiving the response.