code: public static WebPage of(String name) {
  		Objects.requireNonNull(name);
          WebPage webPage = new WebPage();
          webPage.setName(name);
          return webPage;
      }
docs: Method for creating WebPage only with name
  (this can be useful for really simple sitemaps
  or with combination of default settings
  set on SitemapGenerator)
  @param name Name (cannot be null)
  @return WebPage instance
  @throws NullPointerException When name is null