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;
        }

        public Builder withRootDirectory(@Nullable Path rootDirectory) {
            this.rootDirectory = rootDirectory;
            return this;
        }

        public ProtoSession build() {
            return new Impl(userProperties, systemProperties, startTime, topDirectory, rootDirectory);
        }

        private static class Impl implements ProtoSession {

        this.userProperties = requireNonNull(userProperties);
        this.systemProperties = requireNonNull(systemProperties);
        this.topDirectory = requireNonNull(topDirectory);
        this.rootDirectory = rootDirectory;
        this.coreExtensions = coreExtensions;
        this.ciInfo = ciInfo;
        this.options = options;
    }

    @Override
    public ParserRequest parserRequest() {
        return parserRequest;

        public XmlReaderRequestBuilder path(Path path) {
            this.path = path;
            return this;
        }

        public XmlReaderRequestBuilder rootDirectory(Path rootDirectory) {
            this.rootDirectory = rootDirectory;
            return this;
        }

        public XmlReaderRequestBuilder url(URL url) {
            this.url = url;
            return this;
        }

@Deprecated
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() {

        user.put("session.topDirectory", invokerRequest.topDirectory().toString());
        if (invokerRequest.rootDirectory().isPresent()) {
            user.put(
                    "session.rootDirectory",
                    invokerRequest.rootDirectory().get().toString());
        }
        this.protoSession = ProtoSession.newBuilder()
                .withSystemProperties(invokerRequest.systemProperties())

    }

    @Test
    void specials() {
        InvokerRequest invokerRequest = subject.parseInvocation(ParserRequest.mvn(
                        Arrays.asList("-Dfoo=${session.rootDirectory}", "-X"), mock(MessageBuilderFactory.class))
                .cwd(Path.of(System.getProperty("userDir")))
                .userHome(Path.of(System.getProperty("userHome")))
                .build());

                throw new IllegalArgumentException("Specified file does not exists (" + file + ")");
            }
        }
        // maven.config; if exists
        Path mavenConfig = context.rootDirectory != null ? context.rootDirectory.resolve(".mvn/maven.config") : null;
        if (mavenConfig != null && Files.isRegularFile(mavenConfig)) {
            result.add(parseMavenConfigOptions(mavenConfig));
        }

    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