@Override
        public Traversal<Vertex, String> get_g_V_repeatXrepeatXout_createdXX_untilXhasXname_rippleXXXemit_lang() {
            return g.V().repeat(__.repeat(out("created")).until(__.has("name", "ripple"))).emit().values("lang");
        }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/branch/RepeatTest.java