docs: @Override
      public <T> T findOne(LdapQuery query, Class<T> clazz) {
          List<T> result = find(query, clazz);
  
          if (result.size() == 0) {
              throw new EmptyResultDataAccessException(1);
          }
          else if (result.size() != 1) {
              throw new IncorrectResultSizeDataAccessException(1, result.size());
          }
  
          return result.get(0);
      }