docs: public static <V> List<Object> fieldValueList(Iterator<V> iter, String fieldName) {
  		final List<Object> result = new ArrayList<>();
  		if (null != iter) {
  			V value;
  			while (iter.hasNext()) {
  				value = iter.next();
  				result.add(ReflectUtil.getFieldValue(value, fieldName));
  			}
  		}
  		return result;
  	}