} else {
            this.activePomProfiles.remove(modelId);
        }

        return this;
    }

    @Override
    public List<Profile> getActiveExternalProfiles() {
        return activeExternalProfiles;
    }

    public DefaultModelBuildingResult setActiveExternalProfiles(List<Profile> activeProfiles) {
        if (activeProfiles != null) {

     * contributed by {@link ModelBuilderRequest#getProfiles()}.
     *
     * @return The active external profiles or an empty list if none, never {@code null}.
     */
    @Nonnull
    List<Profile> getActiveExternalProfiles();

    /**
     * Gets the problem collector that collected problems encountered during the project building.
     *

            tmp.setEffectiveModel(result.getEffectiveModel());
            tmp.setProblems(getProblems());
            tmp.setActiveExternalProfiles(result.getActiveExternalProfiles());
            String id = getRootModelId();
            tmp.addModelId(id);
            tmp.setRawModel(id, getRootModel());
            result = tmp;
        }

     * contributed by {@link ModelBuildingRequest#getProfiles()}.
     *
     * @return The active external profiles or an empty list if none, never {@code null}.
     */
    List<Profile> getActiveExternalProfiles();

    /**
     * Gets the problems that were encountered during the model building. Note that only problems of severity

        @Override
        public java.util.Map<String, List<Profile>> getActivePomProfilesByModel() {
            return java.util.Map.of();
        }

        @Override
        public List<Profile> getActiveExternalProfiles() {
            return List.of();
        }

        @Override
        public ProblemCollector<ModelProblem> getProblemCollector() {
            return null;
        }

        @Override

                    Stream.concat(result.getActivePomProfiles().stream(), result.getActiveExternalProfiles().stream())
                            .map(org.apache.maven.model.Profile::new)
                            .toList());

            project.setInjectedProfileIds("external", getProfileIds(result.getActiveExternalProfiles()));

            // Track profile sources correctly by using the per-model profile tracking