lifecycleDebugLogger.debugProjectPlan(project, executionPlan);

        if (session.getRequest().getDegreeOfConcurrency() > 1
                && session.getProjects().size() > 1) {
            final Set<Plugin> unsafePlugins = executionPlan.getNonThreadSafePlugins();
            if (!unsafePlugins.isEmpty()) {
                for (String s : MultilineMessageHelper.format(

        projectParent.setCollectedProjects(singletonList(projectModuleD));

        // Set up needed mocks
        when(session.getRequest()).thenReturn(mavenExecutionRequest);
        when(session.getProjects()).thenReturn(null); // needed, otherwise it will be an empty list by default
        when(mavenExecutionRequest.getProjectBuildingRequest()).thenReturn(mock(ProjectBuildingRequest.class));

            return null;
        }

        @Override
        public Path getRootDirectory() {
            return null;
        }

        @Override
        public List<Project> getProjects() {
            return List.of();
        }

        @Override
        public Map<String, Object> getPluginContext(Project project) {
            throw new UnsupportedInStandaloneModeException();
        }

            return;
        }

        alreadyPlannedExecutions.add(mojoDescriptor);

        List<MavenProject> forkedProjects =
                LifecycleDependencyResolver.getProjects(project, session, mojoDescriptor.isAggregator());

        for (MavenProject forkedProject : forkedProjects) {
            if (forkedProject != project) {

    }

    @Override
    public List<Project> getProjects(List<MavenProject> projects) {
        return projects == null ? null : map(projects, this::getProject);
    }

    @Override
    public Project getProject(MavenProject project) {
        return allProjects.computeIfAbsent(project.getId(), id -> new DefaultProject(this, project));
    }

            MavenSession session = legacySupport.getSession();
            if (session != null) {
                pomRepositories = session.getProjects().stream()
                        .filter(p -> artifact.equals(p.getArtifact()))
                        .map(MavenProject::getRemoteArtifactRepositories)
                        .findFirst()

     * @see #getTopDirectory()
     * @see Project#getRootDirectory()
     */
    @Nonnull
    Path getRootDirectory();

    @Nonnull
    List<Project> getProjects();

    /**
     * Returns the plugin context for mojo being executed and the specified
     * {@link Project}, never returns {@code null} as if context not present, creates it.
     *

    }

    protected MavenProject getProject(Artifact pom, boolean allowStub) throws Exception {
        ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
        configuration.setLocalRepository(getLocalRepository());
        initRepoSession(configuration);

        return projectBuilder.build(pom, allowStub, configuration).getProject();
    }

    /**

        nonTransitiveUpstreamProjects = dependencyGraph.getUpstreamProjects(getProject(), false);
        transitiveUpstreamProjects = dependencyGraph.getUpstreamProjects(getProject(), true);
    }

    public MavenSession getSession() {
        return session;
    }

    public MavenProject getProject() {
        return project;
    }

    public TaskSegment getTaskSegment() {

        File pom = getProject("project-basic");
        MavenSession session = createMavenSession(pom);
        Plugin plugin = mojoDescriptorCreator.findPluginForPrefix("clean", session);
        assertNotNull(plugin);
    }

    @Test
    void testSetupMojoExecution() throws Exception {
        File pom = getProject("mojo-configuration");