public interface LifecycleRegistry extends ExtensibleEnumRegistry<Lifecycle>, Iterable<Lifecycle> {

    default Stream<Lifecycle> stream() {
        return StreamSupport.stream(spliterator(), false);
    }

    List<String> computePhases(Lifecycle lifecycle);

        }

        @Override
        public Optional<Lifecycle> lookup(String id) {
            return Optional.empty();
        }

        @Override
        public List<String> computePhases(Lifecycle lifecycle) {
            return List.of();
        }
    };

    private static final PackagingRegistry EMPTY_PACKAGING_REGISTRY = new PackagingRegistry() {
        @Override

        }

        @Override
        public Optional<Lifecycle> lookup(String id) {
            return Optional.empty();
        }

        @Override
        public List<String> computePhases(Lifecycle lifecycle) {
            return List.of();
        }
    };

    private static final PackagingRegistry EMPTY_PACKAGING_REGISTRY = new PackagingRegistry() {
        @Override

            org.apache.maven.api.services.LifecycleRegistry registry, org.apache.maven.api.Lifecycle lifecycle) {
        this.lifecycle = lifecycle;
        this.id = lifecycle.id();
        this.phases = registry.computePhases(lifecycle);
        this.defaultPhases = getDefaultPhases(lifecycle);
    }

    // <lifecycle>
    //   <id>clean</id>
    //   <phases>
    //     <phase>pre-clean</phase>
    //     <phase>clean</phase>

    }

    @Override
    public Optional<Lifecycle> lookup(String id) {
        return stream().filter(lf -> Objects.equals(id, lf.id())).findAny();
    }

    @Override
    public List<String> computePhases(Lifecycle lifecycle) {
        Graph graph = new Graph();
        addPhases(graph, null, null, lifecycle.v3phases());
        List<String> allPhases = graph.visitAll();
        Collections.reverse(allPhases);