private Path rootDirectory;

    /**
     * Creates an empty request.
     */
    public DefaultModelBuildingRequest() {}

    /**
     * Creates a shallow copy of the specified request.
     *
     * @param request The request to copy, must not be {@code null}.
     */
    public DefaultModelBuildingRequest(ModelBuildingRequest request) {
        setPomPath(request.getPomPath());

    @Test
    void testCycleInImports() throws Exception {
        ModelBuilder builder = new DefaultModelBuilderFactory().newInstance();
        assertNotNull(builder);

        DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
        request.setModelSource(new StringModelSource(BASE1));
        request.setModelResolver(new CycleInImportsResolver());

package org.apache.maven.project.validation;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.model.Model;
import org.apache.maven.model.building.DefaultModelBuildingRequest;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblem;
import org.apache.maven.model.building.ModelProblemCollector;

        sysProperties.setProperty("myproperty", "test");

        ModelBuilder builder = new DefaultModelBuilderFactory().newInstance();
        assertNotNull(builder);

        DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
        request.setProcessPlugins(true);
        request.setPomFile(getPom("complex"));
        request.setSystemProperties(sysProperties);

    }

    @Test
    void testCompleteWiring() throws Exception {
        ModelBuilder builder = new DefaultModelBuilderFactory().newInstance();
        assertNotNull(builder);

        DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
        request.setProcessPlugins(true);
        request.setPomFile(getPom("simple"));

        ModelBuildingResult result = builder.build(request);
        assertNotNull(result);

                }

                if (!addEdge(from, p, problems)) {
                    return null;
                }

                DefaultModelBuildingRequest req =
                        new DefaultModelBuildingRequest(request).setPomPath(p).setModelSource(new FileModelSource(p));

                try {
                    return defaultModelBuilder.readRawModel(req, problems);

        Map<String, String> props = new HashMap<>();
        props.put("aa", "${bb}");
        props.put("bb", "${aa}");
        DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();

        Model model = Model.newBuilder().properties(props).build();

        SimpleProblemCollector collector = new SimpleProblemCollector();

import java.io.InputStream;
import java.util.List;
import java.util.Properties;
import java.util.function.UnaryOperator;

import org.apache.maven.model.Model;
import org.apache.maven.model.building.DefaultModelBuildingRequest;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.SimpleProblemCollector;
import org.apache.maven.model.interpolation.DefaultModelVersionProcessor;

import java.util.Map;
import java.util.Objects;
import java.util.Properties;

import org.apache.maven.model.Model;
import org.apache.maven.model.building.ArtifactModelSource;
import org.apache.maven.model.building.DefaultModelBuildingRequest;
import org.apache.maven.model.building.ModelBuilder;
import org.apache.maven.model.building.ModelBuildingException;
import org.apache.maven.model.building.ModelBuildingRequest;

    @Override
    public Result<? extends Model> buildRawModel(
            Path pomFile, int validationLevel, boolean locationTracking, TransformerContext context) {
        final ModelBuildingRequest request = new DefaultModelBuildingRequest()
                .setValidationLevel(validationLevel)
                .setLocationTracking(locationTracking)
                .setModelSource(new FileModelSource(pomFile));