if ("alternate".equals(rel) && hreflang != null && href != null) {
                    final SitemapAlternateLink alternateLink = new SitemapAlternateLink();
                    alternateLink.setHreflang(hreflang);
                    alternateLink.setHref(href);
                    if (sitemapUrl != null) {
                        sitemapUrl.addAlternateLink(alternateLink);
                    }
                }

        final SitemapAlternateLink link1 = sitemapUrl.getAlternateLinks().get(0);
        assertEquals("en", link1.getHreflang());
        assertEquals("http://www.example.com/en/page.html", link1.getHref());

        final SitemapAlternateLink link2 = sitemapUrl.getAlternateLinks().get(1);
        assertEquals("ja", link2.getHreflang());
        assertEquals("http://www.example.com/ja/page.html", link2.getHref());