* to the build path.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface Type extends ExtensibleEnum {
    /**
     * Artifact type name for a POM file.
     */
    String POM = "pom";

    /**
     * Artifact type name for a BOM file.
     */
    String BOM = "bom";

    /**
     * Artifact type name for a JAR file that can be placed either on the class-path or on the module-path.

        CURRENT = JAVA6;
      }
    }

    abstract Type newArrayType(Type componentType);

    abstract Type usedInGenericType(Type type);

    final ImmutableList<Type> usedInGenericType(Type[] types) {
      ImmutableList.Builder<Type> builder = ImmutableList.builder();
      for (Type type : types) {
        builder.add(usedInGenericType(type));
      }
      return builder.build();
    }

      return new ParameterizedType() {
        @Override
        public Type[] getActualTypeArguments() {
          return new Type[] {new TypeCapture<P>() {}.capture()};
        }

        @Override
        public Type getOwnerType() {
          return new TypeCapture<O>() {}.capture();
        }

        @Override
        public Type getRawType() {
          return new TypeCapture<T>() {}.capture();
        }

        assertArgumentNotNull("type", type);
        assertArgumentNotNull("clazz", clazz);

        if (type instanceof Class) {
            return clazz.isAssignableFrom((Class<?>) type);
        }
        if (type instanceof ParameterizedType) {
            final ParameterizedType parameterizedType = ParameterizedType.class.cast(type);
            return isTypeOf(parameterizedType.getRawType(), clazz);

  public static final MediaType ANY_AUDIO_TYPE = createConstant(AUDIO_TYPE, WILDCARD);
  public static final MediaType ANY_VIDEO_TYPE = createConstant(VIDEO_TYPE, WILDCARD);
  public static final MediaType ANY_APPLICATION_TYPE = createConstant(APPLICATION_TYPE, WILDCARD);

  /**
   * Wildcard matching any "font" top-level media type.
   *
   * @since 30.0
   */

    /**
     * Performs a collection lookup for given typed components.
     *
     * @param type The component type.
     * @return The map of components. The map may be empty if no components found.
     * @param <T> The component type.
     * @throws LookupException if there is some provisioning related issue.
     */
    @Nonnull
    <T> Map<String, T> lookupMap(Class<T> type);

    public ArtifactType get(String typeId) {
        Type type = typeRegistry.require(typeId);
        if (type instanceof ArtifactType) {
            return (ArtifactType) type;
        }
        if (type != null) {
            return new DefaultType(
                    type.id(),
                    type.getLanguage(),
                    type.getExtension(),
                    type.getClassifier(),

        return createArtifact(groupId, artifactId, version, scope, type, null, null);
    }

    public Artifact createArtifactWithClassifier(
            String groupId, String artifactId, String version, String type, String classifier) {
        return createArtifact(groupId, artifactId, version, null, type, classifier, null);
    }

        this.version = version;
    }

    public String getType() {
        return type;
    }

    public String getCheckedType() {
        return type == null ? "jar" : type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public ArtifactScopeEnum getArtifactScope() {

            Type type = types.get(id);
            if (type == null) {
                // Copy data as the ArtifactHandler is not immutable, but Type should be.
                ArtifactHandler handler = manager.getArtifactHandler(id);
                type = new DefaultType(
                        id,
                        languageRegistry.require(handler.getLanguage()),
                        handler.getExtension(),