import org.apache.maven.model.InputSource;
import org.apache.maven.model.Model;
import org.apache.maven.model.v4.MavenStaxReader;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

/**
 * @deprecated Use MavenStaxReader instead
 */
@Deprecated
public class MavenXpp3Reader {
    private MavenStaxReader delegate;

    public MavenXpp3Reader() {
        this(null, false);
    }

import java.io.File;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Paths;

import org.apache.maven.api.model.Model;
import org.apache.maven.model.v4.MavenStaxReader;
import org.codehaus.plexus.util.xml.Xpp3Dom;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

        int i = 0;
        for (Path pom : state.poms) {
            try (InputStream is = Files.newInputStream(pom)) {
                MavenStaxReader reader = new MavenStaxReader();
                reader.setAddLocationInformation(false);
                reader.read(is, true, InputSource.of("id", pom.toString()));
                i++;
            } catch (XMLStreamException e) {

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;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.deployment.DeployRequest;

    private static Model model;

    @BeforeAll
    static void setup() throws Exception {
        try (InputStream is = MavenModelVersionTest.class.getResourceAsStream("/xml/pom.xml")) {
            model = new MavenStaxReader().read(is);
        }
    }

    @Test
    void testV4Model() {
        assertEquals("4.0.0", new MavenModelVersion().getModelVersion(model));
    }

    @Test
    void testV4ModelVersion() {

import java.io.Reader;

import org.apache.maven.model.InputSource;
import org.apache.maven.model.Model;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

/**
 * @deprecated Use MavenStaxReader instead
 */
@Deprecated
public class MavenXpp3ReaderEx extends MavenXpp3Reader {

    public MavenXpp3ReaderEx() {
        this(null);
    }

        writer.setAddLocationInformation(false);
        writer.write(sw, model);
        return sw.toString();
    }

    Model fromXml(String xml) throws XMLStreamException {
        return new MavenStaxReader().read(new StringReader(xml));
    }

import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

/**
 * Handles deserialization of a model from some kind of textual format like XML.
 *
 * @deprecated use {@link org.apache.maven.model.v4.MavenStaxReader} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultModelReader implements ModelReader {

    @Override