29 if (url == null || !url.startsWith(
"/"))
return url;
30 if (rootUrl != null) {
33 UriBuilder builder = UriBuilder.fromPath(url).host(requestUri.getHost());
34 builder.scheme(requestUri.getScheme());
35 if (requestUri.getPort() != -1) {
36 builder.port(requestUri.getPort());
38 return builder.build().toString();