public Collection<Breadcrumb> getBreadcrumbs() {
        if (breadcrumbs == null) {
            breadcrumbs = new ArrayList<>();
        }
        return breadcrumbs;
    }
Returns a collection of breadcrumbs. Use the Collection API to get/set/remove crumbs.
@return the collection of breadcrumbs
xmppserver/src/main/java/org/jivesoftware/admin/AdminPageBean.java