final long startTime = systemHelper.getCurrentTimeAsLong();
            final List<SearchResult> list = Collections.list(holder.get().search(baseDn, filter, controls));
            if (logger.isDebugEnabled()) {
                logger.debug("LDAP search completed: time={}ms, baseDn={}, filter={}", systemHelper.getCurrentTimeAsLong() - startTime,
                        baseDn, filter);
            }