request = fillRequestDefaults(request);
        if (request.getInterimResult() != null) {
            return build(request, request.getInterimResult(), new LinkedHashSet<>());
        } else {
            return build(request, new LinkedHashSet<>());
        }
    }

    private static ModelBuilderRequest fillRequestDefaults(ModelBuilderRequest request) {

    public Set<Artifact> getArtifacts() {
        if (artifacts == null) {
            if (artifactFilter == null || resolvedArtifacts == null) {
                artifacts = new LinkedHashSet<>();
            } else {
                artifacts = new LinkedHashSet<>(resolvedArtifacts.size() * 2);
                for (Artifact artifact : resolvedArtifacts) {
                    if (artifactFilter.include(artifact)) {

            Map<File, MavenProject> projectIndex = new ConcurrentHashMap<>(256);

            // phase 1: get file Models from the reactor.
            List<InterimResult> interimResults = build(projectIndex, pomFiles, new LinkedHashSet<>(), true, recursive);

            ClassLoader oldContextClassLoader = Thread.currentThread().getContextClassLoader();

            try {
                // Phase 2: get effective models from the reactor