ServerContext#requestUrl needs to output something useful or be removed entirely

[MTDdk]

Right now it has the following

   @Override
    public String path() {
        return request.path();
    }
//these could probably be entirely removed or supported by Request
    @Override
    @Deprecated
    public String requestUrl() {
        return null;
    }

    @Override
    @Deprecated
    public String requestUri() {
        return null;
    }