public class TestMetadataSource implements ArtifactMetadataSource {
    @Inject
    private ArtifactFactory factory;

    @Override
    public ResolutionGroup retrieve(
            Artifact artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)
            throws ArtifactMetadataRetrievalException {
        Set<Artifact> dependencies = new HashSet<>();

        if ("g".equals(artifact.getArtifactId())) {

import java.util.List;

import org.apache.maven.api.LocalRepository;
import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.Service;
import org.apache.maven.api.Session;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.model.Repository;

/**
 * Factory service to create {@link LocalRepository} or {@link RemoteRepository} objects.
 *

import org.eclipse.aether.repository.LocalMetadataResult;
import org.eclipse.aether.repository.LocalRepository;
import org.eclipse.aether.repository.LocalRepositoryManager;
import org.eclipse.aether.repository.RemoteRepository;

/**
 */
@Deprecated
public class LegacyLocalRepositoryManager implements LocalRepositoryManager {

    private final LocalRepository repository;

    public LegacyLocalRepositoryManager(File basedir) {

            Artifact artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)
            throws ArtifactMetadataRetrievalException {
        return retrieve(artifact, localRepository, remoteRepositories, false);
    }

    public ResolutionGroup retrieve(
            Artifact artifact,
            ArtifactRepository localRepository,
            List<ArtifactRepository> remoteRepositories,

/**
 * <p>In Maven, repositories are locations where project artifacts (such as JAR files, POM files, and other
 * resources) are stored and retrieved. There are two primary types of repositories:
 * {@linkplain LocalRepository local repositories} and
 * {@linkplain RemoteRepository remote repositories}.</p>
 *
 * <h2>Repository Resolution Process</h2>
 *
 * <p>When resolving dependencies, Maven follows this order:</p><ol>

            Artifact artifact,
            boolean resolveManagedVersions,
            ArtifactRepository localRepository,
            List<ArtifactRepository> remoteRepositories);

    void put(
            Artifact artifact,
            boolean resolveManagedVersions,
            ArtifactRepository localRepository,
            List<ArtifactRepository> remoteRepositories,
            ResolutionGroup result);

    void flush();

     *             installation has failed
     * @throws IllegalArgumentException if {@code request} is {@code null} or parameter
     *             {@code localRepository} is {@code null} or {@code localRepository} is not a directory
     *             or parameter {@code mavenArtifacts} is {@code null} or
     *             {@code mavenArtifacts.isEmpty()} is {@code true}.
     */

    }

    @Override
    public void transformForInstall(Artifact artifact, ArtifactRepository localRepository) {
        // metadata is added via addPluginArtifactMetadata
    }

    @Override
    public void transformForDeployment(
            Artifact artifact, ArtifactRepository remoteRepository, ArtifactRepository localRepository) {
        // metadata is added via addPluginArtifactMetadata
    }

    @Override

import org.eclipse.aether.repository.LocalMetadataRegistration;
import org.eclipse.aether.repository.LocalMetadataRequest;
import org.eclipse.aether.repository.LocalMetadataResult;
import org.eclipse.aether.repository.LocalRepository;
import org.eclipse.aether.repository.LocalRepositoryManager;
import org.eclipse.aether.repository.RemoteRepository;

/**

        // for the special case of a drive-relative Windows path, make sure it's absolute to save plugins from trouble
        String localRepository = userSettings.getLocalRepository();
        if (localRepository != null && !localRepository.isEmpty()) {
            File file = new File(localRepository);
            if (!file.isAbsolute() && file.getPath().startsWith(File.separator)) {