logger.debug("Login failed. No permissions. {}", context);
                }
                return OptionalEntity.empty();
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Logged in. {}", context);
            }
            return OptionalEntity.of(ldapUser);
        } catch (final Exception e) {
            logger.debug("Login failed.", e);
        }

            response.flushBuffer();
            if (logger.isDebugEnabled()) {
                logger.debug("Loaded {} docs", count);
            }
        } catch (final InvalidQueryException | ResultOffsetExceededException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to process a scroll request.", e);
            }
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, e);

            if (logger.isDebugEnabled()) {
                logger.debug("Skipped configsync flush: {}", fesenType);
            }
            callback.run();
            break;
        default:
            ComponentUtil.getCurlHelper().post("/_configsync/flush").execute(response -> {
                if (logger.isDebugEnabled()) {
                    logger.debug("Flushed config files: {} => {}", fesenType, response.getContentAsString());