import org.apache.maven.api.model.Dependency;
import org.apache.maven.api.model.DependencyManagement;
import org.apache.maven.api.model.Exclusion;
import org.apache.maven.api.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.merge.MavenModelMerger;

/**
 * Handles injection of dependency management into the model.
 *
 */

import org.apache.maven.api.model.Dependency;
import org.apache.maven.api.model.DependencyManagement;
import org.apache.maven.api.model.Exclusion;
import org.apache.maven.api.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblem;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.building.ModelProblemCollectorRequest;

/**

 *
 * @since 4.0.0
 */
public interface ModelTransformerContextBuilder {
    /**
     * This method is used to initialize the TransformerContext
     *
     * @param request the modelBuildingRequest
     * @param problems the problemCollector
     * @return the mutable transformerContext
     */
    ModelTransformerContext initialize(ModelBuilderRequest request, ModelProblemCollector problems);

    /**

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

 * construction of MavenProject instances without the need to have parent POM(s) available from local or remote
 * repositories.
 * <p>
 * ModelSource2 instances are cached in {@link ModelBuildingRequest#getModelCache()}. Implementations must guarantee
 * that the connection to the backing store remains active until request's {@link ModelCache} is discarded or flushed.
 */
public interface ModelSource2 extends ModelSource {

     */
    Model getModel();

    /**
     * Gets the model building request being processed.
     *
     * @return The model building request being processed, never {@code null}.
     */
    ModelBuildingRequest getRequest();

    /**
     * Gets the container used to collect problems that were encountered while processing the event.
     *

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

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

import org.apache.maven.api.model.PluginExecution;
import org.apache.maven.api.model.PluginManagement;
import org.apache.maven.lifecycle.LifeCyclePluginAnalyzer;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblem.Severity;
import org.apache.maven.model.building.ModelProblem.Version;
import org.apache.maven.model.building.ModelProblemCollector;

import java.util.List;
import java.util.Objects;
import java.util.Properties;

import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.model.Profile;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.properties.internal.SystemProperties;
import org.eclipse.aether.RepositorySystemSession;

/**
 * DefaultProjectBuildingRequest
 */