ModelBuildingRequest request,
            ModelProblemCollector problems) {
        model.update(
                injectProfile(model.getDelegate(), profile != null ? profile.getDelegate() : null, request, problems));
    }

    @Override
    public Model injectProfile(
            Model model, Profile profile, ModelBuildingRequest request, ModelProblemCollector problems) {

            java.io.File projectDir,
            ModelBuildingRequest request,
            ModelProblemCollector problems) {
        return new org.apache.maven.model.Model(interpolateModel(
                model.getDelegate(), projectDir != null ? projectDir.toPath() : null, request, problems));
    }

    @Override
    public org.apache.maven.model.Model interpolateModel(

 * providing a simple error message, leaving the donkey work of creating a nice model problem to this component.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelProblemCollector {

    /**
     * Adds the specified problem.
     *
     * @param req must not be null
     */

            child = Model.newBuilder(child, true).pomFile(null).build();
        }

        SimpleProblemCollector problems = new SimpleProblemCollector();

        Model assembled = assembler.assembleModelInheritance(child, parent, null, problems);

        // write baseName + "-actual"
        File actual = new File(

            };
        } else {
            return null;
        }
    }

    private List<Problem> convert(List<BuilderProblem> problems) {
        ProblemCollector collector = ProblemCollectorFactory.newInstance(null);
        problems.forEach(p -> collector.add(
                Problem.Severity.valueOf(p.getSeverity().name()),
                p.getMessage(),
                p.getLineNumber(),

     * @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 expandPluginConfiguration(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

     * @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 convertReporting(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

     * @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 injectManagement(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

     * @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 injectManagement(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

                new DefaultModelBuildingRequest().setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_2_0);

        SimpleModelProblemCollector problems = new SimpleModelProblemCollector(result);

        modelValidator.validateEffectiveModel(model, request, problems);

        return result;
    }

    private static class SimpleModelProblemCollector implements ModelProblemCollector {