if ((groupId == null) && (getModel().getParent() != null)) {
            groupId = getModel().getParent().getGroupId();
        }

        return groupId;
    }

    public void setArtifactId(String artifactId) {
        getModel().setArtifactId(artifactId);
    }

    public String getArtifactId() {
        return getModel().getArtifactId();
    }

        pluginProject.getModel().setParent(createParent(parentProject));
        projects.add(pluginProject);

        Plugin plugin = createPlugin(pluginProject);

        plugin.addDependency(createDependency(pluginLevelDepProject));

        Build build = declaringProject.getModel().getBuild();

        build.addPlugin(plugin);

        declaringProject.getModel().setBuild(build);

        assertNotNull(childProject.getParent());
        assertEquals("1", childProject.getParent().getVersion());
        assertNotNull(childProject.getModel().getParent());
        assertEquals("[1,10]", childProject.getModel().getParent().getVersion());
    }

    /**
     * Tests whether local version range parent references are built correctly.
     */
    @Test

        testInheritance(baseName, true);
    }

    public void testInheritance(String baseName, boolean fromRepo) throws IOException {
        Model parent = getModel(baseName + "-parent");

        Model child = getModel(baseName + "-child");

        if (fromRepo) {
            // when model is read from repo, a stream is used, then pomFile == null

        public String findTool(String toolName) {
            return delegate.findTool(toolName);
        }

        @Override
        public org.apache.maven.api.toolchain.ToolchainModel getModel() {
            return delegate.getModel().getDelegate();
        }

        @Override
        public boolean matchesRequirements(Map<String, String> requirements) {
            return delegate.matchesRequirements(requirements);

            //

            project.setProjectBuildingRequest(request);

            // pluginArtifacts
            Set<Artifact> pluginArtifacts = new HashSet<>();
            for (Plugin plugin : project.getModel().getDelegate().getBuild().getPlugins()) {
                Artifact artifact = repositorySystem.createPluginArtifact(new org.apache.maven.model.Plugin(plugin));

                if (artifact != null) {

                dependencies = Collections.emptyList();
            } else {
                dependencies = rel.project.getModel().getDependencies();

                DependencyManagement depMgmt = rel.project.getModel().getDependencyManagement();
                managedDependencies = (depMgmt != null) ? depMgmt.getDependencies() : null;

    /**
     * {@return the project model}.
     */
    @Nonnull
    Model getModel();

    /**
     * Shorthand method.
     *
     * @return the build element of the project model
     */
    @Nonnull
    default Build getBuild() {
        Build build = getModel().getBuild();
        return build != null ? build : Build.newInstance();
    }

    /**

        Parent parent = new Parent();
        parent.setGroupId(parentProject.getGroupId());
        parent.setArtifactId(parentProject.getArtifactId());
        project.getModel().setParent(parent);
        return project;
    }

    private MavenProject getMavenProject(String artifactId) {
        MavenProject mavenProject = new MavenProject();
        mavenProject.setGroupId(GROUP_ID);

            deferDeleteFile(consumer);

            project.addAttachedArtifact(createConsumerPomArtifact(project, consumer, session));
        } else if (project.getModel().getDelegate().isRoot()) {
            throw new IllegalStateException(
                    "The use of the root attribute on the model requires the buildconsumer feature to be active");
        }
    }