import org.eclipse.aether.repository.ProxySelector;

/**
 * Strictly internal component able to "extend" session in some way.
 *
 * @since 4.0.0
 */
interface RepositorySystemSessionExtender {
    void extend(
            MavenExecutionRequest mavenExecutionRequest,
            Map<String, Object> configProperties,
            MirrorSelector mirrorSelector,
            ProxySelector proxySelector,

    private final TypeRegistry typeRegistry;

    private final VersionScheme versionScheme;

    private final Map<String, MavenExecutionRequestExtender> requestExtenders;

    private final Map<String, RepositorySystemSessionExtender> sessionExtenders;

    @SuppressWarnings("checkstyle:ParameterNumber")
    @Inject
    DefaultRepositorySystemSessionFactory(
            RepositorySystem repoSystem,

/**
 * Extender that fills in legacy bits (using legacy code).
 *
 * @since 4.0.0
 */
@Named
@Singleton
public class LegacyRepositorySystemSessionExtender implements RepositorySystemSessionExtender {
    @Override
    public void extend(
            MavenExecutionRequest mavenExecutionRequest,
            Map<String, Object> configProperties,
            MirrorSelector mirrorSelector,