Icons in the actionbar do not appear

I have a fragment and I'm putting these two methods in the class

 @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
    menuInflater.inflate(R.menu.alerta, menu);
    super.onCreateOptionsMenu(menu, menuInflater);
  }

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.menu_item_new_quote:
            // TODO put your code here to respond to the button tap
            Toast.makeText(getActivity(), "ADD!", Toast.LENGTH_SHORT).show();
            return true;
        default:
            return true;
    }
}

I have an xml file that I created in the menu folder

But the icons do not want to appear in the actionbar at all ...