public static List<MavenProject> getProjects(MavenProject project, MavenSession session, boolean aggregator) {
        if (aggregator && project.getCollectedProjects() != null) {
            // get the unsorted list of wanted projects
            Set<MavenProject> projectAndSubmodules = new HashSet<>(project.getCollectedProjects());
            projectAndSubmodules.add(project);
            return session.getProjects().stream() // sorted all

                        "Could not find a project in reactor matching the request POM", request.getPom()));

        List<MavenProject> modules = requestPomProject.getCollectedProjects() != null
                ? requestPomProject.getCollectedProjects()
                : Collections.emptyList();

        List<MavenProject> result = new ArrayList<>(modules);
        result.add(requestPomProject);
        return result;