public Object requestManagers() {

    try {
      sql.getConnection();
    } catch (ClassNotFoundException e) {
      e.printStackTrace();
    } catch (SQLException e) {
      e.printStackTrace();
    }

    try {
      Object obj = null;
      obj = (Object) sql.readSystemManagers();
      sql.close();
      return obj;
    } catch (Exception e) {
      e.printStackTrace();
    }
    return null;
  }