* particular, this interface can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
public interface LegacySupport {

    /**
     * Sets the currently active session. Some legacy components are basically stateful and their API is missing

            ArtifactFactory artifactFactory,
            ProjectBuilder projectBuilder,
            MavenMetadataCache cache,
            LegacySupport legacySupport,
            MavenRepositorySystem mavenRepositorySystem) {
        super(repositoryMetadataManager, artifactFactory, projectBuilder, cache, legacySupport, mavenRepositorySystem);
    }

    @Inject
    private LegacySupport legacySupport;

    @Inject
    private SettingsDecrypter settingsDecrypter;

    @Inject
    private MirrorSelector mirrorSelector;

    @Inject
    private ArtifactRepositoryFactory artifactRepositoryFactory;

    public AuthenticationInfo getAuthenticationInfo(String id) {
        MavenSession session = legacySupport.getSession();

import javax.inject.Named;
import javax.inject.Singleton;

import java.util.concurrent.atomic.AtomicReference;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.plugin.LegacySupport;
import org.eclipse.aether.RepositorySystemSession;

/**
 * Helps to provide backward-compatibility with plugins that use legacy components. <strong>Warning:</strong> This is an

            throw new IllegalStateException(e);
        }
    }

    private static RepositorySystemSession rss(PlexusContainer c) {
        try {
            LegacySupport legacySupport = c.lookup(LegacySupport.class);

            return legacySupport.getRepositorySession();
        } catch (ComponentLookupException e) {
            throw new IllegalStateException(e);
        }
    }

@Named
@Singleton
@Deprecated
public class DefaultArtifactInstaller extends AbstractLogEnabled implements ArtifactInstaller {

    @Inject
    private RepositorySystem repoSystem;

    @Inject
    private LegacySupport legacySupport;

    /** @deprecated we want to use the artifact method only, and ensure artifact.file is set correctly. */
    @Deprecated

        LegacySupport legacySupport = container.lookup(LegacySupport.class);
        DefaultMavenExecutionRequest mavenExecutionRequest = new DefaultMavenExecutionRequest();
        MavenSession mavenSession =
                new MavenSession(container, session, mavenExecutionRequest, new DefaultMavenExecutionResult());
        legacySupport.setSession(mavenSession);

 */
@Named
@Deprecated
public class DefaultArtifactDeployer extends AbstractLogEnabled implements ArtifactDeployer {

    @Inject
    private RepositorySystem repoSystem;

    @Inject
    private LegacySupport legacySupport;

    private Map<Object, MergeableMetadata> relatedMetadata = new ConcurrentHashMap<>();

    /**
     * @deprecated we want to use the artifact method only, and ensure artifact.file is set

public class DefaultArtifactRepositoryFactory implements ArtifactRepositoryFactory {

    @Inject
    private org.apache.maven.repository.legacy.repository.ArtifactRepositoryFactory factory;

    @Inject
    private LegacySupport legacySupport;

    @Inject
    private PlexusContainer container;

    public ArtifactRepositoryLayout getLayout(String layoutId) throws UnknownRepositoryLayoutException {
        return factory.getLayout(layoutId);

          <role-hint>default</role-hint>
          <field-name>container</field-name>
        </requirement>
        <requirement>
          <role>org.apache.maven.plugin.LegacySupport</role>
          <role-hint>default</role-hint>
          <field-name>legacySupport</field-name>
        </requirement>
        <requirement>
          <role>org.eclipse.aether.RepositorySystem</role>
          <role-hint>default</role-hint>