private final Set<String> resolve;

        private boolean aggregating;

        private final int hashCode;

        public CacheKey(
                MavenProject project,
                List<RemoteRepository> repositories,
                Collection<String> scopesToCollect,
                Collection<String> scopesToResolve,
                boolean aggregating,
                RepositorySystemSession session) {

            MavenSession session,
            boolean aggregating,
            Set<Artifact> projectArtifacts)
            throws LifecycleExecutionException {

        Set<Artifact> resolvedArtifacts = resolveProjectArtifacts(
                project, scopesToCollect, scopesToResolve, session, aggregating, projectArtifacts);

        for (String task : tasks) {
            if (AGGR.equals(task)) {
                boolean aggregating = true;

                if (currentSegment == null || currentSegment.isAggregating() != aggregating) {
                    currentSegment = new TaskSegment(aggregating);
                    taskSegments.add(currentSegment);
                }

    private final List<Task> tasks;

    private final boolean aggregating;

    public TaskSegment(boolean aggregating) {
        this.aggregating = aggregating;
        tasks = new ArrayList<>();
    }

    public TaskSegment(boolean aggregating, Task... tasks) {
        this.aggregating = aggregating;
        this.tasks = new ArrayList<>(Arrays.asList(tasks));
    }

    @Override

        boolean aggregating = false;

        Set<Artifact> reactorArtifacts = new HashSet<>(3);
        for (MavenProject reactorProject : session.getProjects()) {
            reactorProject.setArtifactFilter(artifact -> true);
            resolver.resolveProjectDependencies(
                    reactorProject, scopesToCollect, scopesToResolve, session, aggregating, reactorArtifacts);

                boolean aggregating = mojoDescriptor.isAggregator() || !mojoDescriptor.isProjectRequired();

                if (currentSegment == null || currentSegment.isAggregating() != aggregating) {
                    currentSegment = new TaskSegment(aggregating);
                    taskSegments.add(currentSegment);
                }

        public NoLock() {}

        @Override
        public void close() {}
    }

    /**
     * Aggregating mojo executions (possibly) modify all MavenProjects, including those that are currently in use
     * by concurrently running mojo executions. To prevent race conditions, an aggregating execution will block
     * all other executions until finished.

                boolean aggregating = mojoDescriptor.isAggregator() || !mojoDescriptor.isProjectRequired();

                if (currentSegment == null || currentSegment.isAggregating() != aggregating) {
                    currentSegment = new TaskSegment(aggregating);
                    taskSegments.add(currentSegment);
                }

            logger.debug("Tasks:   " + projectBuild.getTaskSegment().getTasks());
            logger.debug("Style:   " + (projectBuild.getTaskSegment().isAggregating() ? "Aggregating" : "Regular"));

            if (it.hasNext()) {
                logger.debug("-----------------------------------------------------------------------");
            }
        }

ProjectDependencyGraphStub

Since they define the primary structure of the project/build.

The stubs define three top-level targets that are defined in  LifecycleTaskSegmentCalculatorStub;
clean, aggr and install. "aggr" is an aggregating task while clean and install are lifecyclephases.
There will be three items in the task list for this dataset.

The stubs also exist at different "levels", where one test might wire stubs into a specific live implementation.