assertEquals(3, artifacts.size()); // original jar + consumer pom + build pom

        assertTrue(artifacts.stream().anyMatch(a -> "pom".equals(a.getExtension()) && "".equals(a.getClassifier())));
        assertTrue(
                artifacts.stream().anyMatch(a -> "pom".equals(a.getExtension()) && "build".equals(a.getClassifier())));
    }

    @Test
    void testDeployBuildPomDisabled() {

        List<Artifact> mains = new ArrayList<>();
        for (Artifact artifact : artifacts) {
            if ("pom".equals(artifact.getExtension()) || artifact.getExtension().startsWith("pom.")) {
                if (CONSUMER_POM_CLASSIFIER.equals(artifact.getClassifier())) {
                    consumers.add(artifact);
                } else if ("".equals(artifact.getClassifier())) {
                    mains.add(artifact);
                }

                        isAny(relocation.target.getClassifier()) ? null : relocation.target.getClassifier(),
                        isAny(relocation.target.getExtension()) ? null : relocation.target.getExtension(),
                        isAny(relocation.target.getVersion()) ? null : relocation.target.getVersion(),
                        relocation.global ? "User global relocation" : "User project relocation");

                || ("jar".equals(artifact.getExtension()) && "tests".equals(artifact.getClassifier()));
    }

    private File findInProjectLocalRepository(Artifact artifact) {
        // Prefer the consumer POM when resolving POMs from the project-local repository,
        // to avoid treating a build POM as a repository (consumer) POM.
        if ("pom".equals(artifact.getExtension())) {

            oldExtension.setClassLoadingStrategy(extension.getClassLoadingStrategy());
        }
        this.extension = oldExtension;
    }

    public CoreExtension getExtension() {
        return extension;
    }

public class ArtifactDescriptorUtils {

    public static Artifact toPomArtifact(Artifact artifact) {
        Artifact pomArtifact = artifact;

        if (!pomArtifact.getClassifier().isEmpty() || !"pom".equals(pomArtifact.getExtension())) {
            pomArtifact =
                    new DefaultArtifact(artifact.getGroupId(), artifact.getArtifactId(), "pom", artifact.getVersion());
        }

        return pomArtifact;
    }

    /**

                            ? session.parseVersion(project.getVersion()).toString()
                            : artifact.getBaseVersion().toString(),
                    artifact.getClassifier(),
                    artifact.getExtension(),
                    null);
        }
        // Verify groupId and version, intentionally allow artifactId to differ as Maven project may be

     */
    public void addExtension(CoreExtension coreExtension) {
        getExtensions().add(coreExtension);
    } // -- void addExtension( CoreExtension )

    /**
     * Method getExtensions.
     *
     * @return List
     */
    public List<CoreExtension> getExtensions() {
        if (this.extensions == null) {
            this.extensions = new ArrayList<CoreExtension>();
        }

                "http://maven.apache.org/EXTENSIONS/1.1.0 https://maven.apache.org/xsd/core-extensions-1.1.0.xsd");
        if ((coreExtensions.getExtensions() != null)
                && (coreExtensions.getExtensions().size() > 0)) {
            for (Iterator iter = coreExtensions.getExtensions().iterator(); iter.hasNext(); ) {
                CoreExtension o = (CoreExtension) iter.next();

        // TODO: destinationDirectory should be part of Javadoc
        javadocs.getRenderedDocumentation().from(javadocAll.flatMap(task -> (DirectoryProperty) task.getExtensions().getExtraProperties().get("destinationDirectory")));

        CheckstyleExtension checkstyle = project.getExtensions().getByType(CheckstyleExtension.class);
        tasks.register("checkstyleApi", Checkstyle.class, task -> {
            task.source(extension.getDocumentedSource());