} catch (final Exception e) {
            throw new CrawlingAccessException("Could not serialize object", e);
        }
        resultData.setEncoding(fessConfig.getCrawlerCrawlingDataEncoding());

        return resultData;
    }

    /**
     * Generate the data.
     * @param responseData The response data.
     * @return The data.
     */

     * The value is, e.g. UTF-8 <br>
     * comment: Encoding for crawling data.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerCrawlingDataEncoding();

    /**
     * Get the value for the key 'crawler.web.protocols'. <br>
     * The value is, e.g. http,https <br>
     * comment: Supported web protocols for crawling.