public static void generateGratefulDead(final AbstractTinkerGraph graph) {
        final InputStream stream = TinkerFactory.class.getResourceAsStream("grateful-dead.kryo");
        try {
            graph.io(gryo()).reader().create().readGraph(stream, graph);
        } catch (Exception ex) {
            throw new IllegalStateException(ex);
        }
    }
Generate the graph in {@link #createGratefulDead()} into an existing graph.
tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerFactory.java