} else {
                    graph.addEdge(ep3, graph.addVertex(BEFORE + link.pointer().phase()));
                }
            }
        });
        addPhases(graph, ep1, ep2, phase.phases());
    }

    private static void addPhases(
            Graph graph, Graph.Vertex before, Graph.Vertex after, Collection<Lifecycle.Phase> phases) {
        // We add ordering between internal phases.