* @return This request, never {@code null}.
     */
    ModelBuildingRequest setModelCache(ModelCache modelCache);

    WorkspaceModelResolver getWorkspaceModelResolver();

    ModelBuildingRequest setWorkspaceModelResolver(WorkspaceModelResolver workspaceResolver);

    TransformerContextBuilder getTransformerContextBuilder();

    ModelBuildingRequest setTransformerContextBuilder(TransformerContextBuilder contextBuilder);

        return fileModel;
    }

    @Override
    public ModelBuildingRequest setFileModel(Model fileModel) {
        this.fileModel = fileModel;
        return this;
    }

    @Override
    public Model getRawModel() {
        return null;
    }

    @Override
    public ModelBuildingRequest setRawModel(Model rawModel) {
        return this;
    }

    @Override

            Path projectDir,
            ModelBuildingRequest request,
            ModelProblemCollector problems) {
        return new org.apache.maven.model.Model(interpolateModel(model.getDelegate(), projectDir, request, problems));
    }

    protected List<String> getProjectPrefixes(ModelBuildingRequest config) {
        return config.getValidationLevel() >= ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_4_0

              <exclude>org.apache.maven.model.composition.DefaultDependencyManagementImporter#importManagement(org.apache.maven.model.Model,java.util.List,org.apache.maven.model.building.ModelBuildingRequest,org.apache.maven.model.building.ModelProblemCollector):METHOD_REMOVED</exclude>

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Repository;
import org.apache.maven.model.building.ModelBuildingException;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelSource;
import org.apache.maven.model.building.UrlModelSource;
import org.apache.maven.plugin.LegacySupport;
import org.apache.maven.profiles.ProfileManager;

            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) {

    }

    private SimpleProblemCollector validateRaw(String pom, UnaryOperator<ModelBuildingRequest> requestConfigurer)
            throws Exception {
        Model model = read(pom);

        SimpleProblemCollector problems = new SimpleProblemCollector(model);

        ModelBuildingRequest request = requestConfigurer.apply(new DefaultModelBuildingRequest());

import org.apache.maven.model.Dependency;
import org.apache.maven.model.InputLocation;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.building.FileModelSource;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblem;
import org.apache.maven.model.building.ModelSource;
import org.codehaus.plexus.util.FileUtils;
import org.junit.jupiter.api.Test;

        assertEquals(numWarnings, collector.getWarnings().size(), "Warnings");
        assertEquals(numFatals, collector.getFatals().size(), "Fatals");
    }

    private ModelBuildingRequest createModelBuildingRequest(Properties p) {
        ModelBuildingRequest config = new DefaultModelBuildingRequest();
        if (p != null) {
            config.setSystemProperties(p);
        }
        return config;
    }

    @Test

                if (model != null) {
                    return model;
                }
            }

            try {
                ModelBuildingRequest modelRequest = new DefaultModelBuildingRequest();
                modelRequest.setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL);
                modelRequest.setProcessPlugins(false);
                modelRequest.setTwoPhaseBuilding(false);