String parseResourceUrls() { StringBuilder combinedResources = new StringBuilder(); Matcher matcher = pattern.matcher(content); while (matcher.find()) { final String href = getAbsoluteUrl(matcher.group(2)); final String body = contentLoader.load(href); final String urlRewrittenBody = new CssUrlRewriter(body, href).process(); combinedResources.append(urlRewrittenBody); combinedResources.append("\n"); } return combinedResources.toString(); }