private static void processReferences(XmlTag[] subTags, Set<? super String> list) {
      for (XmlTag xmlTag : subTags) {
        final String href = xmlTag.getAttributeValue("href");
        // TODO: Handle relative dependencies!
        if (href != null && href.startsWith("http://")) {
          list.add(href);
        }
      }
    }
private static void processReferences(XmlTag[] subTags, Set<? super String> list)