* required selectors.
 */
public final class ProjectSelector {
    private static final Logger LOGGER = LoggerFactory.getLogger(ProjectSelector.class);

    public Set<MavenProject> getActiveProjects(
            MavenExecutionRequest request,
            List<MavenProject> projects,
            List<ProjectActivation.ProjectActivationSettings> projectSelectors)
            throws MavenExecutionException {