assertEquals("monthly", ((SitemapUrl) sitemaps[0]).getChangefreq());
        assertEquals("0.8", ((SitemapUrl) sitemaps[0]).getPriority());

        assertNull(sitemaps[1].getLastmod());
        assertEquals("http://www.example.com/catalog?item=12&desc=vacation_hawaii", sitemaps[1].getLoc());
        assertEquals("weekly", ((SitemapUrl) sitemaps[1]).getChangefreq());
        assertNull(((SitemapUrl) sitemaps[1]).getPriority());

        return lastmod;
    }

    public void setLastmod(final String lastmod) {
        this.lastmod = lastmod;
    }

    public String getChangefreq() {
        return changefreq;
    }

    public void setChangefreq(final String changefreq) {
        this.changefreq = changefreq;
    }

    public String getPriority() {
        return priority;
    }