Path rootDirectory = findRoot(basedir);
        if (rootDirectory == null) {
            throw new IllegalStateException(getNoRootMessage());
        }
        return rootDirectory;
    }

    @Nullable
    default Path findRoot(Path basedir) {
        Path rootDirectory = basedir;
        while (rootDirectory != null && !isRootDirectory(rootDirectory)) {

        return this;
    }

    @Override
    public Path getRootDirectory() {
        return rootDirectory;
    }

    @Override
    public ModelBuildingRequest setRootDirectory(Path rootDirectory) {
        this.rootDirectory = rootDirectory;
        return this;
    }

        this.userProperties = requireNonNull(userProperties);
        this.systemProperties = requireNonNull(systemProperties);
        this.topDirectory = requireNonNull(topDirectory);
        this.rootDirectory = rootDirectory;

        this.in = in;
        this.out = out;
        this.err = err;
        this.coreExtensions = coreExtensions;
    }

    @Override
    public ParserRequest parserRequest() {

                context.rootDirectory,
                context.parserRequest.in(),
                context.parserRequest.out(),
                context.parserRequest.err(),
                context.extensions,
                getJvmArguments(context.rootDirectory),
                (MavenOptions) context.options);
    }

    protected List<String> getJvmArguments(Path rootDirectory) {
        if (rootDirectory != null) {

 */
public class CliRequest {
    String[] args;

    CommandLine commandLine;

    ClassWorld classWorld;

    String workingDirectory;

    File multiModuleProjectDirectory;

    Path rootDirectory;

    Path topDirectory;

    boolean verbose;

    boolean quiet;

    boolean showErrors = true;

    Properties userProperties = new Properties();

        assertActivation(true, newExistsProfile("${project.rootDirectory}/" + "file.txt"), context);
        assertActivation(false, newMissingProfile("${project.rootDirectory}"), context);
        assertActivation(false, newMissingProfile("${project.rootDirectory}/" + "file.txt"), context);
    }

    @Test
    void testIsActiveNoFileWithShortBasedir() {

    public static Path findRoot(Path topDirectory) {
        requireNonNull(topDirectory, "topDirectory");
        Path rootDirectory =
                ServiceLoader.load(RootLocator.class).iterator().next().findRoot(topDirectory);
        if (rootDirectory != null) {
            return getCanonicalPath(rootDirectory);
        }
        return null;
    }

    @Nonnull

    @Test
    void testRootDirectory() throws Exception {
        Path rootDirectory = Paths.get("myRootDirectory");

        Model model = Model.newBuilder()
                .version("3.8.1")
                .artifactId("foo")
                .repositories(Collections.singletonList(Repository.newBuilder()
                        .url("file:${project.rootDirectory}/temp-repo")
                        .build()))
                .build();

            Path installationDirectory,
            Path userHomeDirectory,
            Map<String, String> userProperties,
            Map<String, String> systemProperties,
            Path topDirectory,
            Path rootDirectory,
            InputStream in,
            OutputStream out,
            OutputStream err,
            List<CoreExtension> coreExtensions,
            List<String> jvmArguments,
            MavenOptions options) {

        Files.writeString(mavenUserProps, "${includes} = ?${session.rootDirectory}/.mvn/maven.properties\n");
        Path rootDirectory = fs.getPath("C:\\myRootDirectory");
        Path topDirectory = rootDirectory.resolve("myTopDirectory");
        Path mvn = rootDirectory.resolve(".mvn");
        Files.createDirectories(mvn);
        Files.writeString(