}
        return buf.toString();
    }

    String getLdapAdminGroupObjectClasses();

    default Attribute getLdapAdminGroupObjectClassAttribute() {
        final Attribute oc = new BasicAttribute("objectClass");
        split(getLdapAdminGroupObjectClasses(), ",").of(stream -> stream.filter(StringUtil::isNotBlank).forEach(s -> oc.add(s.trim())));
        return oc;
    }