return requestProperties;
    }

    public Map<String, Profile> getProfilesById() {
        return profilesById;
    }

    /* (non-Javadoc)
     * @see org.apache.maven.profiles.ProfileManager#addProfile(org.apache.maven.model.Profile)
     */
    public void addProfile(Profile profile) {
        String profileId = profile.getId();

        Profile existing = profilesById.get(profileId);
        if (existing != null) {

                "only-active-profile",
                "Active only ||${project.basedir}||",
                "<plugin-in-active-profile-only>Active only ||${project.basedir}||</plugin-in-active-profile-only>");

        // =============================================

        Profile inactiveProfile = originalModel.getProfiles().stream()
                .filter(profile -> profile.getId().equals("inactiveProfile"))

    private ProfilesConversionUtils() {}

    public static Profile convertFromProfileXmlProfile(org.apache.maven.profiles.Profile profileXmlProfile) {
        Profile profile = new Profile();

        profile.setId(profileXmlProfile.getId());

        profile.setSource("profiles.xml");

        org.apache.maven.profiles.Activation profileActivation = profileXmlProfile.getActivation();

    }

    /**
     * Mark a profile as required and activated.
     * @param id The identifier of the profile.
     */
    public void activateRequiredProfile(String id) {
        this.activations.put(id, ActivationSettings.ACTIVATION_REQUIRED);
    }

    /**
     * Mark a profile as optional and activated.
     * @param id The identifier of the profile.
     */

    void testValidateUniqueProfileId() throws Exception {
        Settings settings = new Settings();
        Profile profile1 = new Profile();
        profile1.setId("test");
        settings.addProfile(profile1);
        Profile profile2 = new Profile();
        profile2.setId("test");
        settings.addProfile(profile2);

        SimpleProblemCollector problems = new SimpleProblemCollector();

     * @param context The environmental context used to determine the activation status of a profile, must not be
     *            {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     * @return The profiles that have been activated, never {@code null}.
     */
    List<Profile> getActiveProfiles(

     */
    default Model injectProfile(
            Model model, Profile profile, ModelBuilderRequest request, ModelProblemCollector problems) {
        return injectProfiles(model, List.of(profile), request, problems);
    }

    /**
     * Merges values from the specified profile into the given model. Implementations are expected to keep the profile

    @Test
    void testShouldActivateDefaultProfile() throws Exception {
        Profile notActivated = new Profile();
        notActivated.setId("notActivated");

        Activation nonActivation = new Activation();

        nonActivation.setJdk("19.2");

        notActivated.setActivation(nonActivation);

        Profile defaultActivated = new Profile();
        defaultActivated.setId("defaultActivated");

            if (profile != null) {
                Model.Builder builder = Model.newBuilder(model);
                merger.mergeModelBase(builder, model, profile);

                if (profile.getBuild() != null) {
                    Build build = model.getBuild() != null ? model.getBuild() : Build.newInstance();
                    Build.Builder bbuilder = Build.newBuilder(build);

/**
 * Determines profile activation based on the operating system of the current runtime platform.
 *
 * @see ActivationOS
 */
@Named("os")
@Singleton
public class OperatingSystemProfileActivator implements ProfileActivator {

    private static final String REGEX_PREFIX = "regex:";

    @Override