*
 * @since 4.0.0
 */
class DefaultModelTransformerContextBuilder implements ModelTransformerContextBuilder {
    private final Graph dag = new Graph();
    private final DefaultModelBuilder defaultModelBuilder;
    private final DefaultModelTransformerContext context;

    private final Map<String, Set<ModelSource>> mappedSources = new ConcurrentHashMap<>(64);

    private volatile boolean fullReactorLoaded;

    /**
     * The group id of the unresolvable model.
     */
    private final String groupId;

    /**
     * The artifact id of the unresolvable model.
     */
    private final String artifactId;

    /**
     * The version of the unresolvable model.
     */
    private final String version;

    /**
     * Creates a new exception with specified detail message and cause.
     *

 *
 */
@Named
public class DefaultSettingsBuilder implements SettingsBuilder {

    private final DefaultSettingsValidator settingsValidator = new DefaultSettingsValidator();

    private final SettingsMerger settingsMerger = new SettingsMerger();

    @Override
    public SettingsBuilderResult build(SettingsBuilderRequest request) throws SettingsBuilderException {

import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.annotations.Nonnull;
import org.eclipse.aether.graph.DependencyNode;

class WrapperNode extends AbstractNode {
    protected final Node delegate;
    protected final List<Node> children;

    WrapperNode(Node delegate, List<Node> children) {
        this.delegate = delegate;
        this.children = children;
    }

    @Override

 */
class PluginsMetadataGenerator implements MetadataGenerator {
    private static final String PLUGIN_DESCRIPTOR_LOCATION = "META-INF/maven/plugin.xml";

    private final Map<Object, PluginsMetadata> processedPlugins;

    private final Date timestamp;

    PluginsMetadataGenerator(RepositorySystemSession session, InstallRequest request) {
        this(session, request.getMetadata());

/**
 * A wrapper class around a maven resolver artifact.
 */
public class DefaultArtifactCoordinate implements ArtifactCoordinate {
    private final @Nonnull InternalSession session;
    private final @Nonnull org.eclipse.aether.artifact.Artifact coordinate;

    public DefaultArtifactCoordinate(
            @Nonnull InternalSession session, @Nonnull org.eclipse.aether.artifact.Artifact coordinate) {

 *
 */
@Named
@Singleton
public class ProfileActivationFilePathInterpolator {

    private final PathTranslator pathTranslator;

    private final RootLocator rootLocator;

    @Inject
    public ProfileActivationFilePathInterpolator(PathTranslator pathTranslator, RootLocator rootLocator) {
        this.pathTranslator = pathTranslator;

@Priority(5)
public class EmptyLifecycleBindingsInjector extends DefaultLifecycleBindingsInjector {

    private static LifecycleRegistry lifecycleRegistry;
    private static PackagingRegistry packagingRegistry;

    private static final LifecycleRegistry emptyLifecycleRegistry = new LifecycleRegistry() {
        @Override
        public List<String> computePhases(Lifecycle lifecycle) {
            return List.of();
        }

        @Override

     *
     * @see #getModuleInfo(Path)
     */
    private final Map<Path, PathModularization> moduleInfo;

    /**
     * Whether JAR files are modular. This map is redundant with {@link #moduleInfo},
     * but cheaper to compute when the module names are not needed.
     *
     * @see #getPathType(Path)
     */
    private final Map<Path, PathType> pathTypes;

    /**
     * Creates an initially empty cache.

 * <p>
 * Extend this class and override methods to customize, if needed.
 *
 * @since 4.0.0
 */
public class MavenSessionBuilderSupplier implements Supplier<SessionBuilder> {
    protected final RepositorySystem repositorySystem;
    protected final InternalScopeManager scopeManager;

    public MavenSessionBuilderSupplier(RepositorySystem repositorySystem) {
        this.repositorySystem = requireNonNull(repositorySystem);