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

    @Nonnull
    @Override
    public Map<String, Object> getPluginContext(Project project) {
        nonNull(project, "project");
        try {
            MojoExecution mojoExecution = lookup.lookup(MojoExecution.class);

     * @param pluginContext a new <code>Map</code>
     */
    void setPluginContext(Map pluginContext);

    /**
     * @return a <code>Map</code> stored in the plugin container's context.
     */
    Map getPluginContext();

    public ReactorManager(List<MavenProject> projects) throws CycleDetectedException, DuplicateProjectException {
        this.sorter = new ProjectSorter(projects);
    }

    public Map getPluginContext(PluginDescriptor plugin, MavenProject project) {
        Map<String, Map> pluginContextsByKey =
                pluginContextsByProjectAndPluginKey.computeIfAbsent(project.getId(), k -> new HashMap<>());

    @Override
    public Log getLog() {
        if (log == null) {
            log = new SystemStreamLog();
        }

        return log;
    }

    @Override
    public Map getPluginContext() {
        return pluginContext;
    }

    @Override
    public void setPluginContext(Map pluginContext) {
        this.pluginContext = pluginContext;
    }

        throw new IllegalStateException();
    }

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

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

    static class Providers {

        @Provides
        @SuppressWarnings("unused")

     * <strong>Implementation note:</strong> while this method return type is {@link Map}, the returned map instance
     * implements {@link ConcurrentMap} as well.
     *
     */
    public Map<String, Object> getPluginContext(PluginDescriptor plugin, MavenProject project) {
        String projectKey = project.getId();

        ConcurrentMap<String, ConcurrentMap<String, Object>> pluginContextsByKey =

     *
     * @throws org.apache.maven.api.services.MavenException if not called from the within a mojo execution
     */
    @Nonnull
    Map<String, Object> getPluginContext(@Nonnull Project project);

    /**
     * Retrieves the service for the interface
     *
     * @throws NoSuchElementException if the service could not be found
     */
    @Nonnull