Map<String, String> systemProperties,
                    Instant startTime,
                    Path topDirectory,
                    Path rootDirectory) {
                this.userProperties = Map.copyOf(userProperties);
                this.systemProperties = Map.copyOf(systemProperties);
                Map<String, String> cp = new HashMap<>(systemProperties);
                cp.putAll(userProperties);

        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;

    public Properties getSystemProperties() {
        if (systemProperties == null) {
            systemProperties = new Properties();
        }

        return systemProperties;
    }

    @Override
    public DefaultModelBuildingRequest setSystemProperties(Properties systemProperties) {
        if (systemProperties != null) {
            this.systemProperties = new Properties();
            synchronized (

    public Properties getSystemProperties() {
        if (systemProperties == null) {
            systemProperties = new Properties();
        }

        return systemProperties;
    }

    @Override
    public DefaultSettingsBuildingRequest setSystemProperties(Properties systemProperties) {
        if (systemProperties != null) {
            this.systemProperties = new Properties();

     */
    @SuppressWarnings("unchecked")
    public DefaultProfileActivationContext setSystemProperties(Properties systemProperties) {
        if (systemProperties != null) {
            this.systemProperties = Collections.unmodifiableMap((Map) systemProperties);
        } else {
            this.systemProperties = Collections.emptyMap();
        }

        return this;
    }

    /**

        activator = null;
    }

    protected ProfileActivationContext newContext(final Properties userProperties, final Properties systemProperties) {
        DefaultProfileActivationContext context = new DefaultProfileActivationContext();
        return context.setUserProperties(userProperties).setSystemProperties(systemProperties);
    }

    protected void assertActivation(boolean active, Profile profile, ProfileActivationContext context) {

    Path rootDirectory;

    Path topDirectory;

    boolean verbose;

    boolean quiet;

    boolean showErrors = true;

    Properties userProperties = new Properties();

    Properties systemProperties = new Properties();

    MavenExecutionRequest request;

    CliRequest(String[] args, ClassWorld classWorld) {
        this.args = args;
        this.classWorld = classWorld;

    public Properties getSystemProperties() {
        return request.getSystemProperties();
    }

    @Override
    public FilterModelBuildingRequest setSystemProperties(Properties systemProperties) {
        request.setSystemProperties(systemProperties);

        return this;
    }

    @Override
    public Properties getUserProperties() {
        return request.getUserProperties();
    }

    @Override

        for (final String label : bugReportLabels) {
            itemList.add(createPropItem(label));
        }

        final DynamicProperties systemProperties = ComponentUtil.getSystemProperties();
        for (final Map.Entry<Object, Object> entry : systemProperties.entrySet()) {
            if (isBugReportTarget(entry.getKey())) {
                itemList.add(createItem(entry.getKey(), entry.getValue()));
            }

     * environment like {@link System#getProperties()} and environment variables.
     *
     * @param systemProperties The system properties, may be {@code null}.
     * @return This request, never {@code null}.
     */
    SettingsBuildingRequest setSystemProperties(Properties systemProperties);

    /**