使用 objectGUID 查询 - Spring LDAP 模板

I am trying to fetch, store and in turn use objectGUID to query Active directory. To get user attributes i am using following

public static class MyDnKeyValueAttMapper implements AttributesMapper<Object> {
        @Override
        public List<LdapKeyValueList> mapFromAttributes(Attributes attributes)
                throws NamingException, javax.naming.NamingException {
            List<LdapKeyValueList> attributeKeyValMap = new ArrayList<LdapKeyValueList>();
            NamingEnumeration<String> namingEnumeration = attributes.getIDs();

            while (namingEnumeration.hasMoreElements()) {
                String attributeName = (String) namingEnumeration.nextElement();
                String AttributeValue = attributes.get(attributeName).get().toString();
                attributeKeyValMap.add(new LdapKeyValueList(attributeName, AttributeValue));
            }
            return attributeKeyValMap;
        }
    }

objectGuid 似乎总是以字符串格式返回.我也试过-

UUID guid = (UUID) attributes.get("objectGUID").get();