docs: public static String formatResourceNames(CmsRequestContext context, List<CmsResource> resources) {
  
          if (resources == null) {
              return null;
          }
          StringBuffer result = new StringBuffer(128);
          Iterator<CmsResource> i = resources.iterator();
          while (i.hasNext()) {
              CmsResource res = i.next();
              String path = res.getRootPath();
              if (context != null) {
                  path = context.removeSiteRoot(path);
              }
              result.append(path);
              if (i.hasNext()) {
                  result.append(", ");
              }
          }
          return result.toString();
      }