try {
Repository repository = getUnprotectedRepositoryRegistry().getRepository(repositoryId);
if (GroupRepository.class.isInstance(repository) || repository.isSearchable()) {
TreeNodeFactory factory =
new IndexBrowserTreeNodeFactory(repository, createRedirectBaseRef(request).toString());
HashMap<Field, String> hints = new HashMap<Field, String>();
if (StringUtils.isNotBlank(groupIdHint)) {