try {
            Thread.currentThread().setContextClassLoader(project.getClassRealm());
            this.packaging = session.requirePackaging(project.getPackaging());
        } finally {
            Thread.currentThread().setContextClassLoader(ttcl);
        }
    }

    public InternalMavenSession getSession() {
        return session;
    }

    @Override
    public String getExtension() {
        return extension;
    }

    @Override
    public String getLanguage() {
        return "none";
    }

    @Override
    public String getPackaging() {
        return packaging;
    }

    @Override
    @Deprecated
    public boolean isAddedToClasspath() {
        return false;
    }

    @Override
    public boolean isIncludesDependencies() {

    String getDirectory();

    /**
     * Returns the default classifier used if a different one is not set in pom.xml.
     *
     * @return the classifier
     */
    String getClassifier();

    String getPackaging();

    boolean isIncludesDependencies();

    String getLanguage();

    /**
     * Specifies if the artifact contains java classes and can be added to the classpath.

        return Optional.ofNullable(profile)
                .map(org.apache.maven.model.Profile::getDelegate)
                .map(Profile::getActivation)
                .map(Activation::getPackaging);
    }

                source.getScope(),
                extension,
                classifier,
                new TransformedArtifactHandler(
                        classifier, extension, source.getArtifactHandler().getPackaging()));
        this.defaultConsumerPomArtifactTransformer = defaultConsumerPomArtifactTransformer;
        this.project = project;
        this.target = target;
        this.session = session;

     * to locate attached artifacts.
     *
     * @param project the project to copy artifacts from
     */
    private void installIntoProjectLocalRepository(MavenProject project) {
        if ("pom".equals(project.getPackaging())
                        && !"clean".equals(getLifecycles(project).peekLast())
                || hasBeenPackagedDuringThisSession(project)) {

        validateCoordinateId("artifactId", problems, m.getArtifactId(), m);

        validateStringNotEmpty("packaging", problems, Severity.ERROR, Version.BASE, m.getPackaging(), m);

        if (!m.getModules().isEmpty()) {
            if (!"pom".equals(m.getPackaging())) {
                addViolation(
                        problems,
                        Severity.ERROR,
                        Version.BASE,

            if (!"pom".equals(parentModel.getPackaging())) {
                problems.add(new ModelProblemCollectorRequest(Severity.ERROR, ModelProblem.Version.BASE)
                        .setMessage("Invalid packaging for parent POM " + ModelProblemUtils.toSourceHint(parentModel)
                                + ", must be \"pom\" but is \"" + parentModel.getPackaging() + "\"")

    }

    private void validatePrerequisitesForNonMavenPluginProjects(List<MavenProject> projects) {
        for (MavenProject mavenProject : projects) {
            if (!"maven-plugin".equals(mavenProject.getPackaging())) {
                Prerequisites prerequisites =
                        mavenProject.getModel().getDelegate().getPrerequisites();
                if (prerequisites != null && prerequisites.getMaven() != null) {

        id.append( ( getGroupId() == null ) ? "[inherited]" : getGroupId() );
        id.append( ":" );
        id.append( getArtifactId() );
        id.append( ":" );
        id.append( getPackaging() );
        id.append( ":" );
        id.append( ( getVersion() == null ) ? "[inherited]" : getVersion() );

        return id.toString();
    }

    @Override
    public String toString() {