((FessIntervalController) crawler.getIntervalController()).setDelayMillisForWaitingNewUrl(intervalTime);

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

            // num of threads

        setupEpg(_epgMap, et -> ((WebConfig) et).getIncludedDocUrls(),
                (et, vl) -> ((WebConfig) et).setIncludedDocUrls(DfTypeUtil.toString(vl)), "includedDocUrls");
        setupEpg(_epgMap, et -> ((WebConfig) et).getIncludedUrls(), (et, vl) -> ((WebConfig) et).setIncludedUrls(DfTypeUtil.toString(vl)),
                "includedUrls");

    }

    public void setIncludedDocUrls(String value) {
        registerModifiedProperty("includedDocUrls");
        this.includedDocUrls = value;
    }

    public String getIncludedUrls() {
        checkSpecifiedProperty("includedUrls");
        return convertEmptyToNull(includedUrls);
    }

    public void setIncludedUrls(String value) {
        registerModifiedProperty("includedUrls");