Artifact artifact = session.getArtifact(aetherArtifact);
                Path path = artifactManager.getPath(artifact).orElse(null);
                if (path != null) {
                    paths.put(artifact, path);
                } else {
                    requests.add(new ArtifactRequest(aetherArtifact, repositories, null));
                }
            }
            if (!requests.isEmpty()) {

    static {
        HashMap<String, String> deprecatedCoreParameters = new HashMap<>();
        deprecatedCoreParameters.put("${localRepository}", ARTIFACT_REPOSITORY_REASON);
        deprecatedCoreParameters.put("${session.localRepository}", ARTIFACT_REPOSITORY_REASON);
        DEPRECATED_CORE_PARAMETERS = deprecatedCoreParameters;
    }

    @Inject

        if (!recessivePlugins.isEmpty() || !plugins.isEmpty()) {
            LinkedHashMap<String, Plugin> mergedPlugins = new LinkedHashMap<>();
            recessivePlugins.forEach(p -> mergedPlugins.put(p.getPrefix(), p));
            plugins.forEach(p -> mergedPlugins.put(p.getPrefix(), p));
            metadata = metadata.withPlugins(mergedPlugins.values());
        }
        // just carry-on as-is
        if (recessive.getVersioning() != null) {

        for (Vertex v : children) {
            DfsState state = stateMap.putIfAbsent(v, DfsState.VISITING);
            if (state == null) {
                visitAll(v.children, stateMap, list);
                stateMap.put(v, DfsState.VISITED);
                list.add(v.label);
            }
        }
        return list;
    }

    private static List<String> visitCycle(

                Plugin first = normalized.get(key);
                if (first != null) {
                    plugin = merger.mergePlugin(plugin, first);
                }
                normalized.put(key, plugin);
            }

            if (plugins.size() != normalized.size()) {
                builder.build(
                        Build.newBuilder(build).plugins(normalized.values()).build());
            }

        for (int index = 0; index < sorted.size(); index++) {
            MavenProject project = sorted.get(index);
            String id = ProjectSorter.getId(project);
            this.projects.put(id, project);
            this.order.put(project, index);
        }
    }

    /**
     * @since 3.5.0
     */
    public List<MavenProject> getAllProjects() {
        return this.allProjects;
    }

        Map<String, ExecutionPlanItem> lastInExistingPhases = new HashMap<>();
        for (ExecutionPlanItem executionPlanItem : getExecutionPlanItems()) {
            lastInExistingPhases.put(executionPlanItem.getLifecyclePhase(), executionPlanItem);
        }

        ExecutionPlanItem lastSeenExecutionPlanItem = null;

        for (String phase : totalPhaseSet) {

            for (String phase : lifecycle.getPhases()) {
                // The first definition wins.
                if (!phaseToLifecycleMap.containsKey(phase)) {
                    phaseToLifecycleMap.put(phase, lifecycle);
                } else if (logger.isWarnEnabled()) {
                    Lifecycle original = phaseToLifecycleMap.get(phase);
                    logger.warn(

        Map<String, Artifact> artifactMap = new LinkedHashMap<>();

        if (artifacts != null) {
            for (Artifact artifact : artifacts) {
                artifactMap.put(versionlessKey(artifact), artifact);
            }
        }

        return artifactMap;
    }

    public static Artifact copyArtifactSafe(Artifact artifact) {

        final Lock acquiredAggregatorLock;
        final OwnerReentrantLock acquiredProjectLock;

        ProjectLock(MavenSession session, MojoDescriptor mojoDescriptor) {
            mojos.put(Thread.currentThread(), mojoDescriptor);
            if (session.getRequest().getDegreeOfConcurrency() > 1) {
                boolean aggregator = mojoDescriptor.isAggregator();