default -> null;
            };
        }

        @Override
        public ModelSource resolveModel(Parent parent) throws UnresolvableModelException {
            return null;
        }

        @Override
        public ModelSource resolveModel(Dependency dependency) throws UnresolvableModelException {
            return null;
        }

        @Override

        public ModelBuilderRequest getRequest() {
            return null;
        }

        // Other required methods with minimal implementations
        @Override
        public ModelSource getSource() {
            return new ModelSource() {
                @Override
                public Path getPath() {
                    return Paths.get("test-pom.xml");
                }

                @Override

import org.apache.maven.api.services.ModelSource;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;

/**
 * This interface is not public and the purpose is to allow easy unit testing
 * of {@link ConsumerPomArtifactTransformer}.
 */
interface PomBuilder {
    Model build(RepositorySystemSession session, MavenProject project, ModelSource src)

import org.apache.maven.model.Dependency;
import org.apache.maven.model.Parent;
import org.apache.maven.model.Repository;
import org.apache.maven.model.building.FileModelSource;
import org.apache.maven.model.building.ModelSource;
import org.apache.maven.model.resolution.InvalidRepositoryException;
import org.apache.maven.model.resolution.ModelResolver;
import org.apache.maven.model.resolution.UnresolvableModelException;

     *
     * @return The source of the POM or {@code null} if not set.
     */
    ModelSource getModelSource();

    /**
     * Sets the source of the POM to process. Eventually, either {@link #setModelSource(ModelSource)} or
     * {@link #setPomFile(File)} must be set.
     *
     * @param modelSource The source of the POM to process, may be {@code null}.
     * @return This request, never {@code null}.
     */

/**
 * Wraps an ordinary {@link CharSequence} as a model source.
 *
 *
 * @deprecated instead use {@link StringSource}
 */
@Deprecated
public class StringModelSource extends StringSource implements ModelSource {

    /**
     * Creates a new model source backed by the specified string.
     *
     * @param pom The POM's string representation, may be empty or {@code null}.
     */

package org.apache.maven.model.building;

import java.net.URI;

/**
 * Provides access to the contents of a POM independently of the backing store (e.g. file system, database, memory).
 * <p>
 * Unlike {@link ModelSource}, this interface supports loading of parent POM(s) from the same backing store and allows
 * construction of MavenProject instances without the need to have parent POM(s) available from local or remote
 * repositories.
 * <p>

            } else if (request.getSource().isPresent()) {
                Source source = request.getSource().get();
                ModelSource2 modelSource = new SourceWrapper(source);
                res = builder.build(modelSource, req);
            } else {
                throw new IllegalArgumentException("Invalid request");
            }
            return new ProjectBuilderResult() {

import java.io.Writer;
import java.nio.file.Files;
import java.nio.file.Path;

import org.apache.maven.api.model.Model;
import org.apache.maven.api.services.ModelBuilderException;
import org.apache.maven.api.services.ModelSource;
import org.apache.maven.internal.transformation.PomArtifactTransformer;
import org.apache.maven.model.v4.MavenStaxReader;
import org.apache.maven.model.v4.MavenStaxWriter;
import org.apache.maven.project.MavenProject;

 *
 * @since 4.0.0
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class ArtifactModelSource extends FileSource implements ModelSource {
    private final String groupId;

    private final String artifactId;

    private final String version;

    private final int hashCode;

    @Deprecated