JOptionPane.showMessageDialog(null, errors.toString()); errors = null;
  public ArrayList getAgentLocations() {    Vector urls = CSMARTUL.getAgentURLs();    for (int i = 0; i < urls.size(); i++) {      ArrayList results = getAgentLocations((String)urls.get(i));      if (results != null)        return results;    }    return null;  }