*/
        REQUEST_DOMINANT,
    }

    final Session session;
    final RepositoryMerging repositoryMerging;

    List<RemoteRepository> pomRepositories;
    List<RemoteRepository> repositories;
    List<RemoteRepository> externalRepositories;
    Set<String> ids;

    public DefaultModelRepositoryHolder(
            Session session, RepositoryMerging repositoryMerging, List<RemoteRepository> externalRepositories) {

     */
    @Nonnull
    default ModelSource resolveModel(
            @Nonnull Session session, @Nonnull Parent parent, @Nonnull AtomicReference<Parent> modified)
            throws ModelResolverException {
        return resolveModel(
                session,
                parent.getGroupId(),
                parent.getArtifactId(),
                parent.getVersion(),

@SessionScoped
public class DefaultArtifactManager implements ArtifactManager {

    @Nonnull
    private final InternalMavenSession session;

    private final Map<String, Path> paths = new ConcurrentHashMap<>();

    @Inject
    public DefaultArtifactManager(@Nonnull InternalMavenSession session) {
        this.session = session;
    }

    @Nonnull
    @Override
    public Optional<Path> getPath(@Nonnull Artifact artifact) {

### Build session state

A "build session" represents a single invocation of Gradle, for example when you run `gradlew build`.
A session runs the build one or more times.
For example, when continuous build is enabled, the session may run the build many times, but when it is disabled, the session will run the build once only.

The build session state is managed by the `BuildSessionState` class.

        String path = getManager(s, local).getPathForLocalArtifact(s.toArtifact(artifact));
        return local.getPath().resolve(path);
    }

    @Override
    public Path getPathForRemoteArtifact(
            Session session, LocalRepository local, RemoteRepository remote, Artifact artifact) {
        InternalSession s = InternalSession.from(session);
        String path =

        session.setDependencyTraverser(getDependencyTraverser());
        session.setDependencyManager(getDependencyManager());
        session.setDependencySelector(getDependencySelector());
        session.setDependencyGraphTransformer(getDependencyGraphTransformer());
        session.setArtifactTypeRegistry(getArtifactTypeRegistry());

        return cast(InternalSession.class, session.getData().get(InternalSession.class), "session");
    }

    static void associate(org.eclipse.aether.RepositorySystemSession rsession, Session session) {
        if (!rsession.getData().set(InternalSession.class, null, from(session))) {
            throw new IllegalStateException("A maven session is already associated with the repository session");

public class DefaultModelResolver implements ModelResolver {

    @Override
    public ModelSource resolveModel(
            Session session, String groupId, String artifactId, String version, Consumer<String> resolvedVersion)
            throws ModelResolverException {
        try {
            ArtifactCoordinate coord = session.createArtifactCoordinate(groupId, artifactId, version, "pom");
            if (coord.getVersion().getVersionRange() != null

    @Named("scoped")
    @SessionScoped
    @Typed
    static class MySessionScopedBean implements BeanItf {
        @Inject
        Session session;

        @Inject
        BeanItf2 anotherBean;

        public Session getSession() {
            return session;
        }

        public BeanItf2 getAnotherBean() {
            return anotherBean;
        }

        eps.setProperty("jre.home", new File(pom.getParentFile(), "jdk/jre").getPath());

        MavenSession session = createMavenSession(pom, eps);
        MavenProject project = session.getCurrentProject();

        project.setArtifacts(resolver.resolve(project, Collections.singleton(Artifact.SCOPE_COMPILE), session));

        List<String> elements = project.getCompileClasspathElements();
        assertEquals(2, elements.size());