protected ResponseData doPost(final String url) {
        throw new CrawlerSystemException("POST method is not supported.");
    }

    public void setMaxCachedContentSize(final long maxCachedContentSize) {
        this.maxCachedContentSize = maxCachedContentSize;
    }

    public void setAccessTimeout(final Integer accessTimeout) {
        this.accessTimeout = accessTimeout;
    }