code: public CmsVfsSitemapService getSitemapService() throws CmsException {
  
          CmsVfsSitemapService svc = new CmsVfsSitemapService();
          CmsObject cms = OpenCms.initCmsObject(m_cms);
          cms.getRequestContext().setSiteRoot("");
          svc.setCms(cms);
          return svc;
      }
docs: Gets the sitemap service.<p>
  
  @return the sitemap service
  
  @throws CmsException if something goes wrong