public String getClassifier() {
        return null;
    }

    @Override
    public String getDirectory() {
        return getPackaging() + "s";
    }

    @Override
    public String getExtension() {
        return extension;
    }

    @Override
    public String getLanguage() {
        return "java";
    }

    @Override
    public String getPackaging() {
        return type;
    }

@Immutable
public interface ArtifactFactoryRequest extends Request<Session> {

    String getGroupId();

    String getArtifactId();

    String getVersion();

    String getClassifier();

    String getExtension();

    String getType();

    static ArtifactFactoryRequest build(
            Session session, String groupId, String artifactId, String version, String extension) {
        return ArtifactFactoryRequest.builder()

    /**
     * Returns the file name extension of the artifact;
     * e.g. "jar", "pom", "xml", etc.
     *
     * @return the file extension
     */
    String getExtension();

    String getDirectory();

    /**
     * Returns the default classifier used if a different one is not set in pom.xml.
     *
     * @return the classifier
     */
    String getClassifier();

                        + cause.getMessage(),
                cause);
        this.extension = extension;
    }

    public CoreExtension getExtension() {
        return extension;
    }

                session,
                artifact.getGroupId(),
                artifact.getArtifactId(),
                artifact.getVersion().toString(),
                artifact.getClassifier(),
                artifact.getExtension(),
                null));
    }

        return allHandlers.computeIfAbsent(id, k -> {
            Type type = typeRegistry.require(id);
            return new DefaultArtifactHandler(
                    id,
                    type.getExtension(),
                    type.getClassifier(),
                    null,
                    null,
                    type.isIncludesDependencies(),
                    type.getLanguage().id(),

    @Override
    public String getClassifier() {
        return classifier;
    }

    @Override
    public String getDirectory() {
        return null;
    }

    @Override
    public String getExtension() {
        return extension;
    }

    @Override
    public String getLanguage() {
        return "none";
    }

    @Override
    public String getPackaging() {
        return packaging;

public class ArtifactDescriptorUtils {

    public static Artifact toPomArtifact(Artifact artifact) {
        Artifact pomArtifact = artifact;

        if (!pomArtifact.getClassifier().isEmpty() || !"pom".equals(pomArtifact.getExtension())) {
            pomArtifact =
                    new DefaultArtifact(artifact.getGroupId(), artifact.getArtifactId(), "pom", artifact.getVersion());
        }

        return pomArtifact;
    }

    /**

            oldExtension.setClassLoadingStrategy(extension.getClassLoadingStrategy());
        }
        this.extension = oldExtension;
    }

    public CoreExtension getExtension() {
        return extension;
    }

    }

    private String id(org.apache.maven.artifact.Artifact artifact) {
        return artifact.getGroupId()
                + ":" + artifact.getArtifactId()
                + ":" + artifact.getArtifactHandler().getExtension()
                + (artifact.getClassifier() == null || artifact.getClassifier().isEmpty()
                        ? ""
                        : ":" + artifact.getClassifier())