this.startTime = requireNonNull(startTime, "startTime");
            return this;
        }

        public Builder withTopDirectory(@Nonnull Path topDirectory) {
            this.topDirectory = requireNonNull(topDirectory, "topDirectory");
            return this;
        }

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

        this.userHomeDirectory = requireNonNull(userHomeDirectory);

        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

            case ERROR -> Logger.LEVEL_ERROR;
        };
    }

    @Nullable
    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;

                } else if (Files.isRegularFile(path)) {
                    topDirectory = path.getParent();
                    if (!Files.isDirectory(topDirectory)) {
                        throw new IllegalArgumentException("Directory " + topDirectory
                                + " extracted from the -f/--file command-line argument " + arg + " does not exist");
                    }
                } else {

                    topDirectory = path;
                } else if (Files.isRegularFile(path)) {
                    topDirectory = path.getParent();
                    if (!Files.isDirectory(topDirectory)) {
                        System.err.println("Directory " + topDirectory
                                + " extracted from the -f/--file command-line argument " + arg + " does not exist");
                        throw new ExitException(1);

                    "-DvalTopDirectory=${session.topDirectory}/pom.xml",
                    "-f",
                    "${session.rootDirectory}/my-child",
                    "prefix:3.0.0:${foo}",
                    "validate"
                },
                null);
        request.rootDirectory = rootDirectory;
        request.topDirectory = topDirectory;

     * This is typically the directory containing the POM file being executed.
     *
     * @return the top-level directory path
     */
    @Nonnull
    Path topDirectory();

    /**
     * Returns the root directory of the Maven invocation, if found. This is determined by the presence of a

        this.options = options;
        this.logger = invokerRequest.parserRequest().logger();

        Map<String, String> user = new HashMap<>(invokerRequest.userProperties());
        user.put("session.topDirectory", invokerRequest.topDirectory().toString());
        if (invokerRequest.rootDirectory().isPresent()) {
            user.put(
                    "session.rootDirectory",
                    invokerRequest.rootDirectory().get().toString());

            // maven requires this to be set; so default it (and see below at POM)
            request.setMultiModuleProjectDirectory(
                    context.invokerRequest.topDirectory().toFile());
            request.setRootDirectory(context.invokerRequest.topDirectory());
        }

        request.setToolchains(
                Optional.ofNullable(context.effectiveToolchains).map(PersistedToolchains::getToolchains).stream()

        when(request.installationDirectory()).thenReturn(Paths.get("/maven"));
        when(request.userHomeDirectory()).thenReturn(Paths.get("/home/user"));
        when(request.topDirectory()).thenReturn(workingDirectory);
        when(request.rootDirectory()).thenReturn(Optional.empty());
        when(request.userProperties()).thenReturn(Map.of());
        when(request.systemProperties()).thenReturn(Map.of());