boolean mandatory = true;
                        if (location.startsWith("?")) {
                            mandatory = false;
                            location = location.substring(1);
                        }
                        Path path = configProp.resolveSibling(location);
                        MavenProperties props = loadPropertiesFile(path, mandatory, s -> {

                in,
                out,
                err,
                coreExtensions);
        this.options = (EncryptOptions) requireNonNull(options);
    }

    /**
     * The mandatory Encrypt options.
     */
    @Nonnull
    public EncryptOptions options() {
        return options;
    }

        // this map is read ONLY to get config from (profiles + env + system + user)
        Map<String, String> mergedProps = createMergedProperties(request);

        // configProps map is kept "pristine", is written ONLY, the mandatory resolver config
        Map<String, Object> configProps = new LinkedHashMap<>();
        configProps.put(ConfigurationProperties.USER_AGENT, getUserAgent());

    private final ModelProblem.Version version;
    private Exception exception;
    private String message;
    private InputLocation location;

    /**
     * Create a new request with mandatory parameters.
     * @param severity
     * @param version
     */
    public ModelProblemCollectorRequest(Severity severity, Version version) {

                rootDirectory,
                in,
                out,
                err,
                coreExtensions);
        this.options = requireNonNull(options);
    }

    /**
     * The mandatory Maven options.
     */
    @Nonnull
    public O options() {
        return options;
    }

        // [MNG-6074] Maven should produce an error if no model version has been set in a POM file used to build an
        // effective model.
        //
        // As of 3.4, the model version is mandatory even in raw models. The XML element still is optional in the
        // XML schema and this will not change anytime soon. We do not want to build effective models based on
        // models without a version starting with 3.4.