if (synonymLoader.getSynonymMap() == null) {
            if (settings.getAsList("synonyms", null) != null) {
                logger.warn("synonyms values are empty.");
            } else if (settings.get("synonyms_path") != null) {
                logger.warn("synonyms_path[{}] is empty.", settings.get("synonyms_path"));
            } else {
                logger.debug("No synonym data.");
            }
        }

        });
        try {
            userService.store(entity);
            saveInfo(messages -> messages.addSuccessCrudCreateCrudTable(GLOBAL));
        } catch (final Exception e) {
            logger.warn("Failed to create user: username={}, error={}", body.name, e.getMessage(), e);
            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
        }

                logger.warn("Could not add document: url field is missing or null");
                return;
            }

            final String url = dataMap.get(fessConfig.getIndexFieldUrl()).toString();
            final CrawlerClient client = crawlerClientFactory.getClient(url);
            if (client == null) {

            if (disniProvider.isAvailable()) {
                return disniProvider;
            }
            log.warn("DiSNI RDMA provider requested but not available");
            break;

        case "tcp":
            return new TcpRdmaProvider();

        default:
            log.warn("Unknown RDMA provider preference: {}", preference);
            break;
        }

        return null;
    }

    /**

    /*
     * (non-Javadoc)
     *
     * @see org.seasar.extension.timer.TimeoutTarget#expired()
     */
    @Override
    public void expired() {
        if (clientConnectionManager == null) {
            logger.warn("clientConnectionManager is null.");
            return;
        }

        try {
            // Close expired connections
            clientConnectionManager.closeExpiredConnections();

                            getUserBean())
                    .orElse(null);
        } catch (final Exception e) {
            logger.warn("Failed to request: {}", form.docId, e);
        }
        if (doc == null) {
            saveError(messages -> messages.addErrorsDocidNotFound(GLOBAL, form.docId));
            return redirect(ErrorAction.class);

        final RelatedQuery relatedQuery = getRelatedQuery(body).map(entity -> {
            try {
                relatedQueryService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;

                                if (tempFile.exists() && !tempFile.delete()) {
                                    logger.warn("Failed to delete {}", tempFile.getAbsolutePath());
                                }
                            }
                        });
            } catch (final Exception e) {
                logger.warn("Failed to process request file: {}", form.requestFile.getFileName(), e);

        // Check for null bytes
        if (NULL_BYTE.matcher(path).find()) {
            log.warn("Path contains null bytes: {}", sanitizeForLog(path));
            throw new SmbException("Path contains null bytes");
        }

        // Check for control characters
        if (strictMode && CONTROL_CHARS.matcher(path).find()) {
            log.warn("Path contains control characters: {}", sanitizeForLog(path));

                    logger.warn("Could not close a process output stream.", e);
                } finally {
                    latch.countDown();
                }
            }, "ProcessCloser-output-" + sessionId).start();

            try {
                latch.await(streamCloseTimeout, TimeUnit.SECONDS);
            } catch (final InterruptedException e) {
                logger.warn("Interrupted to wait a process.", e);