}

    public void setExcludedDocUrls(String value) {
        registerModifiedProperty("excludedDocUrls");
        this.excludedDocUrls = value;
    }

    public String getExcludedUrls() {
        checkSpecifiedProperty("excludedUrls");
        return convertEmptyToNull(excludedUrls);
    }

    public void setExcludedUrls(String value) {
        registerModifiedProperty("excludedUrls");

        setupEpg(_epgMap, et -> ((WebConfig) et).getExcludedDocUrls(),
                (et, vl) -> ((WebConfig) et).setExcludedDocUrls(DfTypeUtil.toString(vl)), "excludedDocUrls");
        setupEpg(_epgMap, et -> ((WebConfig) et).getExcludedUrls(), (et, vl) -> ((WebConfig) et).setExcludedUrls(DfTypeUtil.toString(vl)),
                "excludedUrls");
        setupEpg(_epgMap, et -> ((WebConfig) et).getIncludedDocUrls(),

            final String includedUrlsStr = webConfig.getIncludedUrls() != null ? webConfig.getIncludedUrls() : StringUtil.EMPTY;
            final String excludedUrlsStr = webConfig.getExcludedUrls() != null ? webConfig.getExcludedUrls() : StringUtil.EMPTY;

            // num of threads
            final CrawlerContext crawlerContext = crawler.getCrawlerContext();
            final int numOfThread =