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new AsyncTask<Void, Void, Void>(){
@Override
protected void onPreExecute() {
android.util.Log.e("tag", "#onPreExecute, " + Thread.currentThread().getId());
super.onPreExecute();
}
@Override
protected Void doInBackground(Void... params) {
android.util.Log.e("tag", "#doInBackground, " + Thread.currentThread().getId());
}
@Override
protected void onPostExecute(Void result) {
android.util.Log.e("tag", "#onPostExecute, " + Thread.currentThread().getId());
super.onPostExecute(result);
}
}.execute((Void)null);