}

    public ArtifactRepository createDefaultRemoteRepository() throws InvalidRepositoryException {
        return new MavenArtifactRepository(
                DEFAULT_REMOTE_REPO_ID,
                "file://"
                        + new File(System.getProperty("basedir", "."), "src/test/remote-repo")
                                .getAbsoluteFile()

                RemoteRepository repo = selector.getMirror(RepositoryUtils.toRepo(repository));
                if (repo != null) {
                    Mirror mirror = new Mirror();
                    mirror.setId(repo.getId());
                    mirror.setUrl(repo.getUrl());
                    mirror.setLayout(repo.getContentType());
                    mirror.setBlocked(repo.isBlocked());
                    return mirror;

    @SuppressWarnings("checkstyle:constantname")
    File defaultUserLocalRepository = new File(userMavenConfigurationHome, "repository");

    String DEFAULT_REMOTE_REPO_ID = MavenRepositorySystem.DEFAULT_REMOTE_REPO_ID;

    String DEFAULT_REMOTE_REPO_URL = MavenRepositorySystem.DEFAULT_REMOTE_REPO_ID;

    Artifact createArtifact(String groupId, String artifactId, String version, String packaging);

            MavenProject project, PluginDescriptor pluginDescriptor, Properties executionProperties) throws Exception {
        ArtifactRepository repo = getLocalRepository();

        MutablePlexusContainer container = (MutablePlexusContainer) getContainer();
        MavenSession session = createSession(container, repo, executionProperties);
        session.setCurrentProject(project);
        session.getRequest().setRootDirectory(rootDirectory);

        ArtifactRepository repo = null;

        if (versions.releaseVersion != null && !versions.releaseVersion.isEmpty()) {
            version = versions.releaseVersion;
            repo = versions.releaseRepository;
        } else if (versions.latestVersion != null && !versions.latestVersion.isEmpty()) {
            version = versions.latestVersion;
            repo = versions.latestRepository;
        }

                .setLocalRepository(repo);

        DefaultRepositorySystemSession repositorySession =
                new DefaultRepositorySystemSession(h -> false); // no close handle
        repositorySession.setLocalRepositoryManager(new SimpleLocalRepositoryManagerFactory()
                .newInstance(repositorySession, new LocalRepository(repo.getUrl())));
        MavenSession session =

                () -> buildPom("unique-repo-id/artifact-repo"),
                "Non-unique repository ids did not cause validation error");
    }

    /* MNG-4193 */
    @Test
    void testValidationErrorUponNonUniquePluginRepositoryId() throws Exception {
        assertThrows(
                ProjectBuildingException.class,
                () -> buildPom("unique-repo-id/plugin-repo"),

    Session session;

    @BeforeEach
    void setup() {
        Path basedir = Paths.get(System.getProperty("basedir", ""));
        Path localRepoPath = basedir.resolve("target/local-repo");
        Path remoteRepoPath = basedir.resolve("src/test/remote-repo");
        Session s = ApiRunner.createSession();
        LocalRepository localRepository = s.createLocalRepository(localRepoPath);

        File repoDir = new File(getBasedir(), "src/test/remote-repo").getAbsoluteFile();

        RepositoryPolicy policy = new RepositoryPolicy();
        policy.setEnabled(true);
        policy.setChecksumPolicy("ignore");
        policy.setUpdatePolicy("always");

        Repository repository = new Repository();
        repository.setId(MavenRepositorySystem.DEFAULT_REMOTE_REPO_ID);

                        ArtifactRepository repo = MavenRepositorySystem.buildArtifactRepository(
                                new org.apache.maven.model.DeploymentRepository(r));
                        repositorySystem.injectProxy(request.getRepositorySession(), List.of(repo));
                        repositorySystem.injectAuthentication(request.getRepositorySession(), List.of(repo));