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

        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) {

        given:
        def jar = tmpDir.file("classes.jar")
        jar << JarUtils.jarWithContents(
            (PROCESSOR_DECLARATION): "InJar",
            (INCREMENTAL_PROCESSOR_DECLARATION): "InJar,AGGREGATING,Foo,Bar,Baz"
        )
        def dir = tmpDir.file("classes")
        dir.file(PROCESSOR_DECLARATION) << "InDir"
        dir.file(INCREMENTAL_PROCESSOR_DECLARATION) << "InDir,ISOLATING,Foo,Bar,Baz"

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

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

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

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

            }
        }

        doExecute(session, mojoExecution, dependencyContext);
    }

    /**
     * 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.

            }

            private AnnotationProcessorDetails.Type toType(IncrementalAnnotationProcessorType type) {
                if (type == IncrementalAnnotationProcessorType.AGGREGATING) {
                    return AnnotationProcessorDetails.Type.AGGREGATING;
                }
                if (type == IncrementalAnnotationProcessorType.ISOLATING) {
                    return AnnotationProcessorDetails.Type.ISOLATING;
                }

    public ProjectBuildList(List<ProjectSegment> items) {
        this.items = Collections.unmodifiableList(items);
    }

    // TODO Optimize; or maybe just rewrite the whole way aggregating mojos are being run.
    /**
     * Returns aProjectBuildList that contains only items for the specified taskSegment
     * @param taskSegment the requested task segment

import org.eclipse.aether.repository.WorkspaceRepository;

import static java.util.Objects.requireNonNull;

/**
 * A maven workspace reader that delegates to a chain of other readers, effectively aggregating their contents.
 * <p>
 * This class, while technically is not immutable, should be considered as such once set up. If not mutated, it is also

        switch (type) {
            case ISOLATING:
                return new IsolatingProcessor(processor, processorResult);
            case AGGREGATING:
                return new AggregatingProcessor(processor, processorResult);
            case DYNAMIC:
                return new DynamicProcessor(processor, processorResult);
            default: