if (request.getPom() == null) {
            return pomlessCollectionStrategy.collectProjects(request);
        }

        // 2. Collect projects for all modules in the multi-module project.
        if (request.getMakeBehavior() != null || !request.getProjectActivation().isEmpty()) {
            List<MavenProject> projects = multiModuleCollectionStrategy.collectProjects(request);
            if (!projects.isEmpty()) {

 */
public interface ProjectCollectionStrategy {
    /**
     *
     * @param request
     * @return
     * @throws ProjectBuildingException
     */
    List<MavenProject> collectProjects(MavenExecutionRequest request) throws ProjectBuildingException;

    @Inject
    public PomlessCollectionStrategy(ProjectBuilder projectBuilder) {
        this.projectBuilder = projectBuilder;
    }

    @Override
    public List<MavenProject> collectProjects(final MavenExecutionRequest request) throws ProjectBuildingException {
        ProjectBuildingRequest buildingRequest = request.getProjectBuildingRequest();

    @Inject
    public RequestPomCollectionStrategy(ProjectsSelector projectsSelector) {
        this.projectsSelector = projectsSelector;
    }

    @Override
    public List<MavenProject> collectProjects(MavenExecutionRequest request) throws ProjectBuildingException {
        List<File> files = Collections.singletonList(request.getPom().getAbsoluteFile());
        return projectsSelector.selectProjects(files, request);
    }

        this.modelProcessor = modelProcessor;
        this.projectsSelector = projectsSelector;
    }

    @Override
    public List<MavenProject> collectProjects(MavenExecutionRequest request) throws ProjectBuildingException {
        File moduleProjectPomFile = getRootProject(request);
        List<File> files = Collections.singletonList(moduleProjectPomFile.getAbsoluteFile());