Help, CodeChallenge Stage 4, task 2

import android.os.AsyncTask;
import android.os.Bundle;

public class CustomActivity extends Activity {
    public String mStatus;

    @Override
        public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_custom);
        CustomAsyncTask task = new CustomAsyncTask();
        task.execute();}

    protected void updateStatusLabel() {
        super.updateStatusLabel();}

    protected class CustomAsyncTask extends AsyncTask<Object, Void, String> {   

 @Override
    protected void onPostExecute(String result) {
            mStatus = result;
            updateStatusLabel();}
    }
}