Artifact l = createRemoteArtifact("l", "1.0-SNAPSHOT");
        deleteLocalArtifact(l);

        List<ArtifactRepository> repositories = new ArrayList<>();
        repositories.add(remoteRepository());
        repositories.add(badRemoteRepository());

        artifactResolver.resolve(l, repositories, localRepository());

        assertLocalArtifactPresent(l);
    }

    @Test

import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.metadata.DefaultMetadata;
import org.eclipse.aether.repository.ArtifactRepository;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.repository.RepositoryPolicy;
import org.eclipse.aether.resolution.MetadataRequest;
import org.eclipse.aether.resolution.MetadataResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

 * <ul>
 *   <li>Access to the current {@link org.apache.maven.api.Project}</li>
 *   <li>Access to the {@link org.apache.maven.api.LocalRepository} and {@link org.apache.maven.api.RemoteRepository} configurations</li>
 *   <li>Access to Maven services through {@link org.apache.maven.api.Session#getService(Class)}</li>
 *   <li>Build configuration and settings</li>
 * </ul>
 *
 * <h3>Dependency management</h3>

    }

    @Override
    public List<ArtifactVersion> retrieveAvailableVersionsFromDeploymentRepository(
            Artifact artifact, ArtifactRepository localRepository, ArtifactRepository remoteRepository) {
        return Collections.singletonList(new DefaultArtifactVersion("10.1.3"));
    }

    @Override
    public ResolutionGroup retrieve(MetadataResolutionRequest request) {

    }

    @Override
    public List<ArtifactVersion> retrieveAvailableVersionsFromDeploymentRepository(
            Artifact artifact, ArtifactRepository localRepository, ArtifactRepository remoteRepository)
            throws ArtifactMetadataRetrievalException {
        throw new UnsupportedOperationException("Cannot get available versions in this test case");
    }

    @Override

        return false;
    }

    @Override
    public ArtifactRepository getRepository() {
        return null;
    }

    @Override
    public void setRepository(ArtifactRepository remoteRepository) {
        // intentionally blank
    }

import java.util.stream.Stream;

import org.apache.maven.api.Language;
import org.apache.maven.api.ProducedArtifact;
import org.apache.maven.api.Project;
import org.apache.maven.api.ProjectScope;
import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.Service;
import org.apache.maven.api.Session;
import org.apache.maven.api.SourceRoot;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.resolution.DependencyResult;
import org.eclipse.aether.util.filter.AndDependencyFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**

    String getId();

    String getDependencyConflictId();

    void addMetadata(ArtifactMetadata metadata);

    Collection<ArtifactMetadata> getMetadataList();

    void setRepository(ArtifactRepository remoteRepository);

    ArtifactRepository getRepository();

    void updateVersion(String version, ArtifactRepository localRepository);

    String getDownloadUrl();

    void setDownloadUrl(String downloadUrl);

    }

    @Override
    public ArtifactRepository getRepository() {
        return null;
    }

    @Override
    public void setRepository(ArtifactRepository remoteRepository) {
        /*
         * NOTE: Metadata at the g:a level contains a collection of available versions. After merging, we can't tell