{
        Model target = new Model();
        target.setModules( Arrays.asList( "first", "second", "third" ) );
        Model source = new Model();
        source.setModules( Arrays.asList( "first", "second", "third" ) );

        modelMerger.merge( target, source, true, null );

        assertThat( target.getModules(), contains( "first", "second", "third" ) );
    }

    @Test

                        || profile.getDependencyManagement().getDependencies().isEmpty())
                && profile.getDistributionManagement() == null
                && profile.getModules().isEmpty()
                && profile.getSubprojects().isEmpty()
                && profile.getProperties().isEmpty()
                && profile.getRepositories().isEmpty()

             */
            if (child.getProjectDirectory() != null) {
                childName = child.getProjectDirectory().getFileName().toString();
            }

            for (String module : parent.getModules()) {
                module = module.replace('\\', '/');

                if (module.regionMatches(true, module.length() - 4, ".xml", 0, 4)) {
                    module = module.substring(0, module.lastIndexOf('/') + 1);

        if (request.getValidationLevel() >= ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_2_0) {
            Set<String> modules = new HashSet<>();
            for (int i = 0, n = m.getModules().size(); i < n; i++) {
                String module = m.getModules().get(i);
                if (!modules.add(module)) {
                    addViolation(
                            problems,
                            Severity.ERROR,

                        Model rawModel = defaultModelBuilder.readFileModel(gaBuildingRequest, problems);
                        for (String module : rawModel.getModules()) {
                            Path moduleFile = defaultModelBuilder
                                    .getModelProcessor()
                                    .locateExistingPom(pom.getParent().resolve(module));

            MavenProject project = projectBuilder.build(pom, configuration).getProject();

            projects.add(project);
            if (includeModules) {
                for (String module : project.getModules()) {
                    File modulePom = new File(pom.getParentFile(), module);
                    if (modulePom.isDirectory()) {
                        modulePom = new File(modulePom, "pom.xml");
                    }