search(bindDn, filter, null, () -> ldapUser.getEnvironment(), result -> {
            for (final SearchResult srcrslt : result) {
                final String groupDn = srcrslt.getNameInNamespace();
                if (logger.isDebugEnabled()) {
                    logger.debug("groupDn: {}", groupDn);
                }
                final String groupName = getSearchRoleName(groupDn);