builder.addAll(original.getFinalizerGroups());
        builder.addAll(finalizers.getFinalizerGroups());
        return new CompositeNodeGroup(reachableFromEntryPoint, original.getOrdinalGroup(), builder.build());
    }

    public CompositeNodeGroup(boolean reachableFromEntryPoint, NodeGroup newOrdinal, Set<FinalizerGroup> finalizerGroups) {
        this.ordinalGroup = newOrdinal;