import org.apache.maven.api.model.Parent;
import org.apache.maven.api.model.Plugin;
import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.project.Graph.Vertex;

/**
 * ProjectSorter
 */
public class ProjectSorter {
    private Graph graph;

    private List<MavenProject> sortedProjects;

    private Map<String, MavenProject> projectMap;

    /**
     * Sort a list of projects.
     * <ul>

        Dependency dep = createDependency("group", "artifact", "1.0");

        plugin.addDependency(dep);

        build.addPlugin(plugin);

        new ProjectSorter(Collections.singletonList(project));
    }

    @Test
    void testShouldNotFailWhenManagedPluginDepReferencesCurrentProject() throws Exception {

import org.apache.maven.project.MavenProject;
import org.apache.maven.project.ProjectSorter;

/**
 * Describes the interdependencies between projects in the reactor.
 *
 */
public class DefaultProjectDependencyGraph implements ProjectDependencyGraph {

    private final ProjectSorter sorter;

    private final List<MavenProject> allProjects;

    private final Map<MavenProject, Integer> order;

    private String failureBehavior = FAIL_FAST;

    private final ProjectSorter sorter;

    private Map<String, BuildSuccess> buildSuccessesByProject = new HashMap<>();

    public ReactorManager(List<MavenProject> projects) throws CycleDetectedException, DuplicateProjectException {
        this.sorter = new ProjectSorter(projects);
    }

              <exclude>org.apache.maven.toolchain.DefaultToolchainManager#logger</exclude>
              <!-- Remove plexus utils -->
              <exclude>org.apache.maven.project.ProjectSorter#getDAG():METHOD_REMOVED</exclude>
              <!-- classes moved to maven-compat -->
              <exclude>org.apache.maven.plugin.PluginManager</exclude>