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

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

        return this;
    }

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

        setProfiles(request.getProfiles());
        setActiveProfileIds(request.getActiveProfileIds());
        setInactiveProfileIds(request.getInactiveProfileIds());
        setSystemProperties(request.getSystemProperties());
        setUserProperties(request.getUserProperties());
        setBuildStartTime(request.getBuildStartTime());
        setModelResolver(request.getModelResolver());

        DefaultProfileActivationContext context = new DefaultProfileActivationContext();
        return context.setUserProperties(userProperties).setSystemProperties(systemProperties);
    }

    protected void assertActivation(boolean active, Profile profile, ProfileActivationContext context) {
        SimpleProblemCollector problems = new SimpleProblemCollector();

                .setRemoteRepositories(request.getRemoteRepositories())
                .setPluginArtifactRepositories(request.getPluginArtifactRepositories())
                .setSystemProperties(executionProperties)
                .setUserProperties(new Properties());

        initRepoSession(request, configuration);

        List<MavenProject> projects = new ArrayList<>();

        copy.setGoals(original.getGoals());
        copy.setRecursive(original.isRecursive());
        copy.setPom(original.getPom());
        copy.setSystemProperties(original.getSystemProperties());
        copy.setUserProperties(original.getUserProperties());
        copy.setShowErrors(original.isShowErrors());
        copy.setActiveProfiles(original.getActiveProfiles());

     *
     * @param systemProperties The system properties, may be {@code null}.
     * @return This request, never {@code null}.
     */
    ModelBuildingRequest setSystemProperties(Properties systemProperties);

    /**
     * Gets the user properties to use for interpolation and profile activation. The user properties have been

        request.setLocalRepository(configuration.getLocalRepository());
        request.setBuildStartTime(configuration.getBuildStartTime());
        request.setUserProperties(configuration.getUserProperties());
        request.setSystemProperties(configuration.getExecutionProperties());

        ProfileManager profileManager = configuration.getGlobalProfileManager();
        if (profileManager != null) {

        SettingsBuilder builder = new DefaultSettingsBuilderFactory().newInstance();
        assertNotNull(builder);

        DefaultSettingsBuildingRequest request = new DefaultSettingsBuildingRequest();
        request.setSystemProperties(System.getProperties());
        request.setUserSettingsFile(getSettings("simple"));

        SettingsBuildingResult result = builder.build(request);
        assertNotNull(result);

        assertNotNull(builder);

        DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
        request.setProcessPlugins(true);
        request.setPomFile(getPom("complex"));
        request.setSystemProperties(sysProperties);

        ModelBuildingResult result = builder.build(request);
        assertNotNull(result);
        assertNotNull(result.getEffectiveModel());

                    if (session != null) {
                        configuration.setSystemProperties(session.getSystemProperties());
                        configuration.setUserProperties(session.getUserProperties());
                    } else {
                        configuration.setSystemProperties(getSystemProperties());
                        configuration.setUserProperties(new Properties());