public static final String LABELS_development_mode_warning = "{labels.development_mode_warning}";

    /** The key of the message: The system you are using is no longer supported. Please refer to the product support lifecycle page and upgrade. */
    public static final String LABELS_eol_error = "{labels.eol_error}";

    /** The key of the message: Search Screen */

                            .replace("\"_index\":\"fess_log.", "\"_index\":\"" + fessConfig.getIndexLogIndex() + "."))
                    .reduce((prev, line) -> {
                        try {
                            if (StringUtil.isBlank(prev)) {
                                final Map<String, Map<String, String>> result =