}

        return pomArtifact;
    }

    /**
     * Creates POM artifact out of passed in artifact by dropping classifier (if exists) and rewriting extension to
     * "pom". Unconditionally, unlike {@link #toPomArtifact(Artifact)} that does this only for artifacts without
     * classifiers.
     *
     * @since 4.0.0
     */
    public static Artifact toPomArtifactUnconditionally(Artifact artifact) {

            this.version = version;
            return this;
        }

        public ArtifactFactoryRequestBuilder classifier(String classifier) {
            this.classifier = classifier;
            return this;
        }

        public ArtifactFactoryRequestBuilder extension(String extension) {
            this.extension = extension;
            return this;

        this.extension = extension;
    }

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

    public void setClassifier(final String classifier) {
        this.classifier = classifier;
    }

    @Override
    public String getDirectory() {
        if (directory == null) {
            return getPackaging() + "s";
        }

    public static Object getKey(Artifact artifact) {
        return artifact.getGroupId() + ':' + artifact.getArtifactId() + ':' + artifact.getBaseVersion();
    }

    protected String getKey(String classifier, String extension) {
        return classifier + ':' + extension;
    }

    @Override
    public String getGroupId() {
        return metadata.getGroupId();
    }

    @Override
    public String getArtifactId() {

  define for each {{{../maven-model/maven.html#class_dependency}dependency type}} information on the artifact
  (classifier, extension, language) and how to manage it as dependency (add to classpath, include dependencies).

                break;
            default:
                throw new IllegalArgumentException("Bad artifact coordinates " + coord
                        + ", expected format is <groupId>:<artifactId>[:<extension>[:<classifier>]]:<version>");
        }
        return s;
    }

            String artifactId,
            String version,
            String type,
            String classifier,
            List<ArtifactRepository> remoteRepositories,
            List<String> path,
            Throwable t) {
        super(message, groupId, artifactId, version, type, classifier, remoteRepositories, path, t);
    }

    public ArtifactResolutionException(
            String message,

     * @param artifactFile artifact file.
     * @param artifactClassifier artifact classifier.
     */
    void attachArtifact(MavenProject project, File artifactFile, String artifactClassifier);

    /**
     * * See {@link #attachArtifact(MavenProject, String, String, java.io.File)}, but with classifier set to null.
     * @param project project reference.
     * @param artifactType artifact type.

    /**
     * The base version of the artifact.
     *
     * @return the version
     */
    @Nonnull
    Version getBaseVersion();

    /**
     * The classifier of the artifact.
     *
     * @return the classifier or an empty string if none, never {@code null}
     */
    @Nonnull
    String getClassifier();

    /**
     * The file extension of the artifact.
     *

            String classifier,
            String extension) {
        super(
                source.getGroupId(),
                source.getArtifactId(),
                source.getVersionRange(),
                source.getScope(),
                extension,
                classifier,
                new TransformedArtifactHandler(