* 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.

     * @param model the model, must not be {@code null}
     * @param type the type
     * @param logger the logger, must not be {@code null}
     */
    protected DefaultToolchain(ToolchainModel model, String type, Logger logger) {
        this(model, logger);
        this.type = type;
    }

    @Override
    public final String getType() {
        return type != null ? type : model.getType();
    }

    @Override

import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

@Target({FIELD, METHOD, TYPE})
@Retention(RUNTIME)
@Documented
public @interface Typed {
    Class<?>[] value() default {};

                assertEquals(handler.getExtension(), extension, type + " extension");
                // Packaging/Directory is Maven1 remnant!!!
                // assertEquals(handler.getPackaging(), packaging, type + " packaging");
                assertEquals(handler.getClassifier(), classifier, type + " classifier");

        this.groupId = groupId;
        this.artifactId = artifactId;
        this.version = version;
        this.type = type;
        this.baseMessage = message;
    }

    public InvalidArtifactRTException(
            String groupId, String artifactId, String version, String type, String message, Throwable cause) {
        super(cause);

        this.groupId = groupId;

@Named(RarTypeProvider.NAME)
@Singleton
public class RarTypeProvider implements Provider<Type> {
    public static final String NAME = "rar";

    private final Type type;

    public RarTypeProvider() {
        this.type = new DefaultType(
                NAME,
                Type.LANGUAGE_JAVA,
                "rar",
                null,
                new DefaultDependencyProperties(DependencyProperties.FLAG_INCLUDES_DEPENDENCIES));
    }

@Named(MavenPluginTypeProvider.NAME)
@Singleton
public class MavenPluginTypeProvider implements Provider<Type> {
    public static final String NAME = "maven-plugin";

    private final Type type;

    public MavenPluginTypeProvider() {
        this.type = new DefaultType(
                NAME,
                Type.LANGUAGE_JAVA,
                "jar",
                null,

 * or another kind of path.
 *
 * <p>One path type is handled in a special way: unlike other options,
 * the paths specified in a {@code --patch-module} Java option is effective only for a specified module.
 * This type is created by calls to {@link #patchModule(String)} and a new instance must be created for
 * every module to patch.</p>
 *

        ArtifactType type = null;
        if (request.getType() != null) {
            type = session.getSession().getArtifactTypeRegistry().get(request.getType());
        }
        String str1 = request.getClassifier();
        String classifier =
                str1 != null && !str1.isEmpty() ? request.getClassifier() : type != null ? type.getClassifier() : null;
        String str = request.getExtension();

    void testGetType() {
        ToolchainModel model = new ToolchainModel();
        DefaultToolchain toolchain = newDefaultToolchain(model, "TYPE");
        assertEquals("TYPE", toolchain.getType());

        model.setType("MODEL_TYPE");
        toolchain = newDefaultToolchain(model);
        assertEquals("MODEL_TYPE", toolchain.getType());
    }

    @Test
    void testGetLogger() {
        ToolchainModel model = new ToolchainModel();