public MavenProject(Model model) {
        setModel(model);
    }

    public MavenProject(MavenProject project) {
        deepCopy(project);
    }

    public File getParentFile() {
        return parentFile;
    }

    public void setParentFile(File parentFile) {
        this.parentFile = parentFile;
    }

    // ----------------------------------------------------------------------

    }

    @Test
    void testMatchingArtifactIdsDifferentGroupIds() throws Exception {
        List<MavenProject> projects = new ArrayList<>();
        MavenProject project1 = createProject("groupId1", "artifactId", "1.0");
        projects.add(project1);
        MavenProject project2 = createProject("groupId2", "artifactId", "1.0");
        projects.add(project2);

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;

        return project;
    }

    private MavenProject getMavenProject(String artifactId) {
        MavenProject mavenProject = new MavenProject();
        mavenProject.setGroupId(GROUP_ID);
        mavenProject.setArtifactId(artifactId);
        mavenProject.setVersion("1.0");
        mavenProject.setPomFile(new File(artifactId, "pom.xml"));
        mavenProject.setCollectedProjects(new ArrayList<>());

        }
    }

    public boolean isBlackListed(MavenProject project) {
        return blackList.contains(getProjectKey(project));
    }

    private static String getProjectKey(MavenProject project) {
        return ArtifactUtils.versionlessKey(project.getGroupId(), project.getArtifactId());
    }

    public void registerBuildFailure(MavenProject project, Exception error, String task, long time) {

    // of the values from a MavenProject. Ideally this should be something internal and nothing outside Maven
    // would ever need this so it should not be exposed in a public API
    MavenProject buildStandaloneSuperProject(ProjectBuilderConfiguration configuration) throws ProjectBuildingException;

    private Map<String, Map<String, Map<String, MavenProject>>> getAllProjects() {
        // compute the projects mapping
        if (allProjects == null) {
            List<MavenProject> allProjects = session.getAllProjects();
            if (allProjects != null) {
                Map<String, Map<String, Map<String, MavenProject>>> map = new HashMap<>();

import java.util.concurrent.CopyOnWriteArrayList;

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

public class DefaultMavenExecutionResult implements MavenExecutionResult {
    private MavenProject project;

    private List<MavenProject> topologicallySortedProjects = Collections.emptyList();

    private DependencyResolutionResult dependencyResolutionResult;

            Vertex toVertex,
            MavenProject fromProject,
            Map<String, MavenProject> projectMap,
            boolean force,
            boolean safe)
            throws CycleDetectedException {
        if (fromVertex.equals(toVertex)) {
            return;
        }

        if (fromProject != null) {
            MavenProject toProject = projectMap.get(toVertex.getLabel());

        MavenProject mavenProject = new MavenProject();
        mavenProject.setArtifact(new DefaultArtifact("g", "a", "1.0", Artifact.SCOPE_TEST, "jar", "", null));
        File artifactFile = Files.createTempFile("foo", "tmp").toFile();
        try {
            mavenProjectHelper.attachArtifact(mavenProject, "java-source", artifactFile);
            assertEquals(1, mavenProject.getAttachedArtifacts().size());