* @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    default void validateFileModel(Model model, ModelBuildingRequest request, ModelProblemCollector problems) {
        // do nothing
    }

    /**

import java.util.List;

/**
 * Collects problems that are encountered during settings building.
 *
 */
public interface ProblemCollector {

    /**
     * Adds the specified problem.
     * Either message or exception is required
     *
     * @param severity The severity of the problem, must not be {@code null}.
     * @param message The detail message of the problem, may be {@code null}.

     *
     * @param model the input model
     * @param problems the problem collector to report any issues encountered during transformation
     * @return the transformed model, or the input model if no transformation is needed
     */
    @Nonnull
    Model transform(
            @Nonnull Model model, @Nonnull ModelBuilderRequest request, @Nonnull ModelProblemCollector problems);

     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    default void validate(Settings settings, boolean isProjectSettings, SettingsProblemCollector problems) {
        validate(settings, problems);
    }

    private final List<BuilderProblem> problems;

    /**
     * @param message the message to give
     * @param e the {@link Exception}
     */
    public SettingsBuilderException(String message, Exception e) {
        super(message, e);
        this.problems = List.of();
    }

    public SettingsBuilderException(String message, List<BuilderProblem> problems) {

    private final List<BuilderProblem> problems;

    /**
     * @param message the message to give
     * @param e the {@link Exception}
     */
    public ToolchainsBuilderException(String message, Exception e) {
        super(message, e);
        this.problems = List.of();
    }

    public ToolchainsBuilderException(String message, List<BuilderProblem> problems) {

/**
 * Extends the ModelProblemCollector by the capacity of returning the collected problems.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelProblemCollectorExt extends ModelProblemCollector {

    /**
     * The collected problems.
     * @return a list of model problems encountered, never {@code null}
     */
    List<ModelProblem> getProblems();

        SimpleProblemCollector problems = new SimpleProblemCollector();
        List<Profile> active = selector.getActiveProfiles(profiles, context, problems);
        assertTrue(active.isEmpty());
        assertEquals(1, problems.getErrors().size());
        assertEquals(
                "Failed to determine activation for profile one: BOOM",
                problems.getErrors().get(0));
    }

     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    void injectLifecycleBindings(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

        SimpleProblemCollector problems = new SimpleProblemCollector();

        assertEquals(active, activator.isActive(new org.apache.maven.model.Profile(profile), context, problems));

        assertEquals(0, problems.getErrors().size(), problems.getErrors().toString());
        assertEquals(0, problems.getWarnings().size(), problems.getWarnings().toString());
    }