JCRSiteNode siteNode = (JCRSiteNode) session.getNode(SITECONTENT_ROOT_NODE);
NavigationHelper navigationHelper = (NavigationHelper) SpringContextSingleton.getInstance().getContext().getBean("NavigationHelper");
Locale locale = LanguageCodeConverters.languageCodeToLocale("en");
List<String> paths = new ArrayList<String>();
paths.add("/mounts");
List<GWTJahiaNode> rootNodes = navigationHelper.retrieveRoot(paths, null,null,null,null,
null,null,siteNode, session, locale);
List<String> nodeTypes = new ArrayList<String>();
nodeTypes.add("nt:file");
nodeTypes.add("nt:folder");
nodeTypes.add("jnt:mountPoints");