checkScopeUpdate(Artifact.SCOPE_RUNTIME, Artifact.SCOPE_PROVIDED, Artifact.SCOPE_RUNTIME);
        checkScopeUpdate(Artifact.SCOPE_RUNTIME, Artifact.SCOPE_RUNTIME, Artifact.SCOPE_RUNTIME);
        checkScopeUpdate(Artifact.SCOPE_RUNTIME, Artifact.SCOPE_SYSTEM, Artifact.SCOPE_SYSTEM);
        checkScopeUpdate(Artifact.SCOPE_RUNTIME, Artifact.SCOPE_TEST, Artifact.SCOPE_RUNTIME);

import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.artifact.metadata.ResolutionGroup;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;

/**
 * DefaultMavenMetadataCache
 */
@Named
@Singleton

        Map artifactMap = project.getArtifactMap();

        assertNotNull( artifactMap, "artifact-map should not be null." );
        assertEquals( 1, artifactMap.size(), "artifact-map should contain 1 element." );

        Artifact artifact = (Artifact) artifactMap.get( key );

        assertNotNull( artifact, "dependency artifact not found in map." );

    VersionsMetadata(Artifact artifact, Path path, Date timestamp) {
        super(createRepositoryMetadata(artifact), path, timestamp);
        this.artifact = artifact;
    }

    private static Metadata createRepositoryMetadata(Artifact artifact) {

        Metadata.Builder metadata = Metadata.newBuilder();
        metadata.groupId(artifact.getGroupId());
        metadata.artifactId(artifact.getArtifactId());

                    e);
        }
    }

    private List<org.eclipse.aether.artifact.Artifact> toAetherArtifacts(final List<Artifact> pluginArtifacts) {
        return new ArrayList<>(RepositoryUtils.toArtifacts(pluginArtifacts));
    }

    private List<Artifact> toMavenArtifacts(DependencyResult dependencyResult) {
        List<Artifact> artifacts =
                new ArrayList<>(dependencyResult.getArtifactResults().size());

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.InvalidRepositoryException;
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.Authentication;

    /**
     * Collects the transitive dependencies of some artifacts and builds a dependency graph. Note that this operation is
     * only concerned about determining the coordinates of the transitive dependencies and does not actually resolve the
     * artifact files.
     *
     * @param session the {@link Session}, must not be {@code null}
     * @param artifact the {@link Artifact}, must not be {@code null}

    }

    private static Predicate<Artifact> artifactPredicate(Artifact artifact) {
        return a -> matches(artifact.getGroupId(), a.getGroupId())
                && matches(artifact.getArtifactId(), a.getArtifactId())
                && matches(artifact.getBaseVersion(), a.getBaseVersion())
                && matches(artifact.getExtension(), a.getExtension())
                && matches(artifact.getClassifier(), a.getClassifier());
    }

            @Nonnull Session session, @Nonnull RemoteRepository repository, @Nonnull Collection<Artifact> artifacts) {
        return builder()
                .session(nonNull(session, "session cannot be null"))
                .repository(nonNull(repository, "repository cannot be null"))
                .artifacts(nonNull(artifacts, "artifacts cannot be null"))
                .build();
    }

    class ArtifactDeployerRequestBuilder {

     */
    static boolean isInScope(Artifact artifact, Artifact nodeArtifact) {
        return Objects.equals(artifact.getGroupId(), nodeArtifact.getGroupId())
                && Objects.equals(artifact.getArtifactId(), nodeArtifact.getArtifactId())
                && Objects.equals(artifact.getVersion(), nodeArtifact.getVersion());
    }