@Override
    public Path getTopDirectory() {
        return getMavenSession().getRequest().getTopDirectory();
    }

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

    @Nonnull
    @Override
    public Map<String, Object> getPluginContext(Project project) {
        nonNull(project, "project");
        try {

    }

    private Stream<ProjectActivationSettings> getProjects(final Predicate<ActivationSettings> predicate) {
        return this.activations.stream().filter(activation -> predicate.test(activation.activationSettings));
    }

    private Set<String> getProjectSelectors(final Predicate<ActivationSettings> predicate) {
        return getProjects(predicate).map(activation -> activation.selector).collect(toSet());
    }

            MavenProject project = projects.get(i);
            String key = BuilderCommon.getKey(project);

            this.getProjects().put(key, project);
            this.getIndices().put(key, i);
        }
    }

    public Map<String, MavenProject> getProjects() {
        return projects;
    }

    public Map<String, Integer> getIndices() {
        return indices;
    }

        for (MavenProject reactorProject : session.getProjects()) {
            reactorProject.setArtifactFilter(artifact -> true);
            resolver.resolveProjectDependencies(
                    reactorProject, scopesToCollect, scopesToResolve, session, aggregating, reactorArtifacts);
            reactorArtifacts.add(reactorProject.getArtifact());
        }

        MavenProject lib = session.getProjects().get(1);

    public static class InjectDependencyLifecycleListener extends AbstractMavenLifecycleParticipant {

        @Override
        public void afterProjectsRead(MavenSession session) {
            MavenProject project = session.getProjects().get(0);

            Dependency dependency = new Dependency();
            dependency.setArtifactId(INJECTED_ARTIFACT_ID);
            dependency.setGroupId("foo");
            dependency.setVersion("1.2.3");

        return cast(InternalMavenSession.class, session, "session should be an " + InternalMavenSession.class);
    }

    List<Project> getProjects(List<org.apache.maven.project.MavenProject> projects);

    Project getProject(org.apache.maven.project.MavenProject project);

    List<org.apache.maven.artifact.repository.ArtifactRepository> toArtifactRepositories(

                    .getUpstreamProjects(projectBuild.getProject(), false)
                    .isEmpty()) {
                result.add(projectBuild.getProject());
            }
        }
        if (result.isEmpty() && projectBuilds.size() > 0) {
            // Must return at least one project
            result.add(projectBuilds.get(0).getProject());
        }
        return new ArrayList<>(result);
    }

    @Nonnull
    Dependency getDependency(@Nonnull org.eclipse.aether.graph.Dependency dependency);

    List<Project> getProjects(List<org.apache.maven.project.MavenProject> projects);

    Project getProject(org.apache.maven.project.MavenProject project);

    List<org.eclipse.aether.repository.RemoteRepository> toRepositories(List<RemoteRepository> repositories);

            List<MavenProject> projects;

            if (taskSegment.isAggregating()) {
                projects = Collections.singletonList(rootProject);
            } else {
                projects = session.getProjects();
            }
            for (MavenProject project : projects) {
                ClassLoader tccl = Thread.currentThread().getContextClassLoader();
                MavenProject currentProject = session.getCurrentProject();

        return items.isEmpty();
    }

    /**
     * @return a set of all the projects managed by the build
     */
    public Set<MavenProject> getProjects() {
        return items.stream().map(ProjectSegment::getProject).collect(Collectors.toSet());
    }