remoteRepositories = session.getService(ProjectManager.class).getRemoteProjectRepositories(project);
        } else {
            rootArtifact = request.getRootArtifact().orElse(null);
            root = request.getRoot().orElse(null);
            dependencies = request.getDependencies();
            managedDependencies = request.getManagedDependencies();
            remoteRepositories = session.getRemoteRepositories();

            remoteRepositories = session.getService(ProjectManager.class).getRemoteProjectRepositories(project);
        } else {
            rootArtifact = request.getRootArtifact().orElse(null);
            root = request.getRoot().orElse(null);
            dependencies = request.getDependencies();
            managedDependencies = request.getManagedDependencies();
            remoteRepositories = session.getRemoteRepositories();

        List<BuilderProblem> problems = new ArrayList<>();

        Source globalSource = request.getGlobalToolchainsSource().orElse(null);
        PersistedToolchains global = readToolchains(globalSource, request, problems);

        Source userSource = request.getUserToolchainsSource().orElse(null);
        PersistedToolchains user = readToolchains(userSource, request, problems);

                org.eclipse.aether.artifact.Artifact aetherArtifact = session.toArtifact(coord);
                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));
                }

                .filter(pe -> Objects.equals(pe.getId(), getExecutionId()))
                .findFirst()
                .map(org.apache.maven.model.PluginExecution::getDelegate)
                .orElse(null);
    }

    @Override
    public MojoDescriptor getDescriptor() {
        return delegate.getMojoDescriptor().getMojoDescriptorV4();
    }

    @Override
    public String getLifecyclePhase() {

        private Relocation getRelocation(Artifact artifact) {
            return relocations.stream()
                    .filter(r -> r.predicate.test(artifact))
                    .findFirst()
                    .orElse(null);
        }
    }

    private Relocations parseRelocations(RepositorySystemSession session) {
        String relocationsEntries = (String) session.getConfigProperties().get(CONFIG_PROP_RELOCATIONS_ENTRIES);

                        FAMILY_WIN9X,
                        FAMILY_WINDOWS,
                        FAMILY_ZOS)
                .filter(Os::isFamily)
                .findFirst()
                .orElse(null);
    }

        org.eclipse.aether.scope.DependencyScope system = internalScopeManager
                .getDependencyScope(DependencyScope.SYSTEM.id())
                .orElse(null);

        ArrayList<org.eclipse.aether.scope.ResolutionScope> result = new ArrayList<>();
        result.add(internalScopeManager.createResolutionScope(
                RS_NONE,

     */
    private LifecycleMapping lookupLifecycleMapping(final String packaging) {
        return lookup.lookupOptional(LifecycleMapping.class, packaging).orElse(null);
    }

    private void parseLifecyclePhaseDefinitions(Map<Plugin, Plugin> plugins, String phase, LifecyclePhase goals) {
        InputSource inputSource = new InputSource();

                            "No unique Source for %s:%s: %s and %s",
                            groupId, artifactId, a.getLocation(), b.getLocation()));
                })
                .orElse(null);
    }

    public void putSource(String groupId, String artifactId, ModelSource source) {
        mappedSources
                .computeIfAbsent(groupId + ":" + artifactId, k -> new HashSet<>())