Refreshing map using asyncTask error

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http://stackoverflow.com – I'm trying to refresh a map with some coordinates that i get from a webserver. This is my AsyncTask: public class GetUsersAsyncTask extends AsyncTask<String, Void, String> { HttpResponse response = null; InputStream is = null; AndroidHttpClient httpclient; String responseString = null; @SuppressLint("NewApi") @Override protected String doInBackground(String... url) { try{ Log.i("entrabackground",""+(++ae)); httpclient = AndroidHttpClient.newInstance("Android"); Log.i("!!","upa upa"); HttpUriRequest request = new (HowTos)