return Collections.unmodifiableList(new ArrayList<>(getProfileIds(pa -> pa.active)));
    }

    /**
     * Mimics the pre-Maven 4 "inactive profiles" list.
     * @deprecated Use {@link #getRequiredInactiveProfileIds()} and {@link #getOptionalInactiveProfileIds()} instead.
     */
    @Deprecated
    public List<String> getInactiveProfiles() {

        activation = new ProfileActivation();
        performProfileActivation(
                parser.parse(options, new String[] {"-P", "!test1,-test2,-?test3,!?test4"}), activation);
        assertThat(activation.getRequiredInactiveProfileIds(), containsInAnyOrder("test1", "test2"));
        assertThat(activation.getOptionalInactiveProfileIds(), containsInAnyOrder("test3", "test4"));

        activation = new ProfileActivation();

        final Set<String> requiredProfiles = new HashSet<>();
        requiredProfiles.addAll(profileActivation.getRequiredActiveProfileIds());
        requiredProfiles.addAll(profileActivation.getRequiredInactiveProfileIds());

        // Check whether the required profiles were found in any of the projects we're building.
        final Set<String> notFoundRequiredProfiles = requiredProfiles.stream()