ResolutionGroup group = source.retrieve(artifact, localRepository(), new ArrayList<>());
        List<ArtifactRepository> repositories = group.getResolutionRepositories();
        assertEquals(1, repositories.size(), "There should be one repository!");
        ArtifactRepository repository = repositories.get(0);
        assertEquals(TestMavenWorkspaceReader.REPO_ID, repository.getId());

import org.apache.maven.plugin.version.PluginVersionResult;
import org.eclipse.aether.repository.ArtifactRepository;

/**
 * Describes the result of a plugin version resolution request.
 *
 * @since 3.0
 */
class DefaultPluginVersionResult implements PluginVersionResult {

    private String version;

    private ArtifactRepository repository;

    DefaultPluginVersionResult() {
        // does nothing
    }

import org.apache.maven.artifact.DefaultArtifact;
import org.apache.maven.artifact.factory.ArtifactFactory;
import org.apache.maven.artifact.metadata.ArtifactMetadata;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;
import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
import org.apache.maven.artifact.versioning.VersionRange;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.repository.ArtifactRepository;

/**
 */
public class ArtifactNotFoundException extends AbstractArtifactResolutionException {
    private String downloadUrl;

    protected ArtifactNotFoundException(
            String message, Artifact artifact, List<ArtifactRepository> remoteRepositories) {
        super(message, artifact, remoteRepositories);
    }

    ArtifactResolutionResult collect(
            Set<Artifact> artifacts,
            Artifact originatingArtifact,
            Map<String, Artifact> managedVersions,
            ArtifactRepository localRepository,
            List<ArtifactRepository> remoteRepositories,
            ArtifactMetadataSource source,
            ArtifactFilter filter,
            List<ResolutionListener> listeners,

    private LocalArtifactRepository buildReactor;

    private LocalArtifactRepository ideWorkspace;

    private ArtifactRepository userLocalArtifactRepository;

    public DelegatingLocalArtifactRepository(ArtifactRepository artifactRepository) {
        this.userLocalArtifactRepository = artifactRepository;
    }

    public void setBuildReactor(LocalArtifactRepository localRepository) {
        this.buildReactor = localRepository;

    @Deprecated
    ArtifactRepository createDeploymentArtifactRepository(String id, String url, String layoutId, boolean uniqueVersion)
            throws UnknownRepositoryLayoutException;

    ArtifactRepository createDeploymentArtifactRepository(
            String id, String url, ArtifactRepositoryLayout layout, boolean uniqueVersion);

    ArtifactRepository createArtifactRepository(
            String id,

        this.pluginManager = pluginManager;
    }

    @Override
    public List<ArtifactRepository> createArtifactRepositories(
            List<Repository> pomRepositories,
            List<ArtifactRepository> externalRepositories,
            ProjectBuildingRequest request)
            throws InvalidRepositoryException {
        List<ArtifactRepository> internalRepositories = new ArrayList<>();

        this.artifact = artifact;

        return this;
    }

    @Override
    public ArtifactRepository getLocalRepository() {
        return repositoryRequest.getLocalRepository();
    }

    @Override
    public DefaultMetadataResolutionRequest setLocalRepository(ArtifactRepository localRepository) {
        repositoryRequest.setLocalRepository(localRepository);

        return this;
    }

    }

    @Override
    public List<ArtifactRepository> getRemoteRepositories() {
        if (remoteRepositories == null) {
            remoteRepositories = new ArrayList<>();
        }
        return remoteRepositories;
    }

    @Override
    public MavenExecutionRequest addPluginArtifactRepository(ArtifactRepository repository) {
        for (ArtifactRepository repo : getPluginArtifactRepositories()) {