public void addCookies(HashMap<String, List<Cookie>> cookies) {
        if (cookies == null) {
            throw new NullPointerException("Cookies argument is null");
        }
        CookieUtils.addCookies(cookies, downloader.getFetcher());
    }
Add cookies to the right fetcher.
ache/src/main/java/achecrawler/crawler/async/AsyncCrawler.java