this.extension = extension;
            return this;
        }

        public DependencyCoordinateFactoryRequestBuilder type(String type) {
            this.type = type;
            return this;
        }

        public DependencyCoordinateFactoryRequestBuilder coordinateString(String coordinateString) {
            this.coordinateString = coordinateString;

     * @param <T> the type of the object associated to this key
     */
    final class Key<T> {

        private final Class<T> type;
        private final Object id;

        private Key(Class<T> type, Object id) {
            this.type = type;
            this.id = id;
        }

        public Class<T> type() {
            return type;
        }

        @Override

 * field, the injected field type and the {@link #requestType()}.
 * <p>
 * If the {@code requestType} is not set explicitly, it will be inferred
 * from the {@code pathScope} and the injected field type. If the type
 * is {@link org.apache.maven.api.Node Node} and {@code pathScope == ""},
 * then the dependencies will be <i>collected</i>.
 * If the type is {@link org.apache.maven.api.Node Node} or

 * with the dependency collection or resolution result for the project.
 * </p>
 *
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@Inherited
public @interface Mojo {
    /**
     * goal name (required).
     * @return the goal name
     */
    @Nonnull
    String name();

    /**
     * default phase to bind your mojo.

/**
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface DependencyCoordinate extends ArtifactCoordinate {
    /**
     * The type of the artifact.
     *
     * @return the type
     */
    @Nonnull
    Type getType();

    @Nonnull
    DependencyScope getScope();

    @Nullable
    Boolean getOptional();

    @Nonnull
    Collection<Exclusion> getExclusions();

import org.apache.maven.api.annotations.Experimental;

/**
 * Toolchain interface.
 *
 * @since 4.0.0
 */
@Experimental
public interface Toolchain {
    /**
     * Gets the type of toolchain.
     *
     * @return the toolchain type
     */
    String getType();

    /**
     * Gets the platform tool executable.
     *
     * @param toolName the tool platform independent tool name

            String artifactId,
            String version,
            String classifier,
            String extension,
            String type) {
        return create(ArtifactCoordinateFactoryRequest.build(
                session, groupId, artifactId, version, classifier, extension, type));
    }

    @Nonnull
    default ArtifactCoordinate create(@Nonnull Session session, Artifact artifact) {

     * @param classifier the artifact classifier, or {@code null} is unspecified
     * @param extension the artifact extension, or {@code null} is unspecified
     * @param type the artifact type, or {@code null} is unspecified
     * @return coordinate used to point to the artifact
     *

when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type
    `show w'. This is free software, and you are welcome to redistribute
    it under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the
appropriate parts of the General Public License. Of course, the commands