*/
    String getClassifier();

    /**
     * Gets the version of the constituent's artifact.
     *
     * @return The version, never {@code null}.
     */
    String getVersion();

    /**
     * Gets the file of the constituent's artifact.
     *
     * @return The file, never {@code null}.
     */
    File getFile();

            Model model = (data.getModel() != null) ? data.getModel().clone() : null;
            return new ModelData(data.getSource(), model, data.getGroupId(), data.getArtifactId(), data.getVersion());
        }

        @Override
        public ModelData fromCache(ModelData data) {
            return intoCache(data);
        }
    };

    /**

            String projectId, Dependency dependency, File pomFile, InvalidVersionSpecificationException cause) {
        super(
                projectId + ", " + formatLocationInPom(dependency) + " " + dependency.getVersion() + ", pom file "
                        + pomFile,
                cause);

        this.projectId = projectId;

        this.pomFile = pomFile;

        this.cause = cause;

        for (MavenProject p : projectsInRequestScope) {
            String projectKey = ArtifactUtils.key(p.getGroupId(), p.getArtifactId(), p.getVersion());

            projectsMap.put(projectKey, p);
        }

        for (MavenProject project : projects) {
            // MNG-1911 / MNG-5572: Building plugins with extensions cannot be part of reactor

                    message,
                    "  ",
                    artifact.getGroupId(),
                    artifact.getArtifactId(),
                    artifact.getVersion(),
                    artifact.getType(),
                    artifact.getClassifier(),
                    artifact.getDownloadUrl(),
                    artifact.getDependencyTrail()));
        }

    public String getGroupId() {
        return pluginInfo.groupId;
    }

    @Override
    public String getArtifactId() {
        return "";
    }

    @Override
    public String getVersion() {
        return "";
    }

    @Override
    public Nature getNature() {
        return Nature.RELEASE_OR_SNAPSHOT;
    }

    @Override
    public void transformForResolve(Artifact artifact, RepositoryRequest request)
            throws ArtifactResolutionException, ArtifactNotFoundException {
        if (Artifact.LATEST_VERSION.equals(artifact.getVersion())) {
            try {
                String version = resolveVersion(artifact, request);
                if (Artifact.LATEST_VERSION.equals(version)) {

    }

    // DefaultProjectBuilder
    public Artifact createDependencyArtifact(Dependency d) {
        if (d.getVersion() == null) {
            return null;
        }

        VersionRange versionRange;
        try {
            versionRange = VersionRange.createFromVersionSpec(d.getVersion());
        } catch (InvalidVersionSpecificationException e) {
            return null;
        }

        MavenSession session = new MavenSession(
                getContainer(), repoSession, new DefaultMavenExecutionRequest(), new DefaultMavenExecutionResult());
        session.setSession(new DefaultSessionFactory(
                        getContainer().lookup(RepositorySystem.class),
                        getContainer().lookup(MavenRepositorySystem.class),

    @Nonnull
    @Override
    String toString();

    /**
     * Represents range boundary.
     */
    interface Boundary {
        /**
         * The bounding version.
         */
        Version getVersion();

        /**
         * Returns {@code true} if version is included of the range.
         */
        boolean isInclusive();
    }