protected TinkerServiceRegistry.TinkerServiceFactory instantiate(final String className) {
        try {
            return (TinkerServiceRegistry.TinkerServiceFactory) Class.forName(className).getConstructor(AbstractTinkerGraph.class).newInstance(this);
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException |
                 NoSuchMethodException | InvocationTargetException ex) {
            throw new RuntimeException(ex);
        }
    }
Manages identifiers of type {@code String}.
tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/AbstractTinkerGraph.java