/**
     * Creates a new DataStoreCrawlingException with the specified URL, message, and cause.
     * The abort flag is set to false by default.
     *
     * @param url the URL where the crawling error occurred
     * @param message the error message
     * @param cause the underlying exception that caused this error
     */
    public DataStoreCrawlingException(final String url, final String message, final Throwable cause) {

            return null;
        } catch (final ChildUrlsException | DataStoreCrawlingException e) {
            throw e;
        } catch (final Exception e) {
            final FessConfig fessConfig = ComponentUtil.getFessConfig();
            final Object configId = dataMap.get(fessConfig.getIndexFieldConfigId());
            throw new DataStoreCrawlingException(url, "Failed to add document. url: " + url + ", configId: " + configId, e);