1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?

For change proposals, see [Proposing Changes To Go](https://go.dev/s/proposal-process).

## Contributing code

Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html) before sending patches.

/**
 * A utility class to assist in setting up a Maven-like repository system. Note: This component is meant to
 * assist those clients that employ the repository system outside of an IoC container, Maven plugins should instead
 * always use regular dependency injection to acquire the repository system.
 *
 * @deprecated See {@link MavenSessionBuilderSupplier}
 */
@Deprecated
public final class MavenRepositorySystemUtils {

    feature: support "project.directory" property, ressembling future model addition of "directory" element along "artifactId"
  </description>

  <!-- 5 inherited urls with ${project.directory} added to parent instead of artifactId -->
  <url>http://www.apache.org/child/</url>
  <scm>
    <connection>scm:my-scm:http://domain.org/base/child</connection>
    <developerConnection>scm:my-scm:https://domain.org/base/child/</developerConnection>

/**
 * Normalizes URLs to remove the ugly parent references "../" that got potentially inserted by URL adjustment during
 * model inheritance.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultModelUrlNormalizer implements ModelUrlNormalizer {

    @Inject
    private UrlNormalizer urlNormalizer;

import org.codehaus.plexus.util.xml.Xpp3Dom;

/**
 * Handles expansion of general build plugin configuration into individual executions.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultPluginConfigurationExpander implements PluginConfigurationExpander {

    @Override

import org.apache.maven.model.profile.ProfileActivationContext;

/**
 * Determines profile activation based on the project's packaging.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named("packaging")
@Singleton
@Deprecated(since = "4.0.0")
public class PackagingProfileActivator implements ProfileActivator {

    @Override
    public boolean isActive(

import org.apache.maven.model.Repository;

/**
 * Signals an error when adding a repository to the model resolver.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class InvalidRepositoryException extends Exception {

    /**
     * The repository that raised this error, can be {@code null}.
     */
    private Repository repository;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

/**
 * Extensions to load.
 *
 * @deprecated Use {@link org.apache.maven.api.cli.extensions.CoreExtension} instead
 */
@Deprecated
@SuppressWarnings("all")
public class CoreExtensions implements Serializable {

    // --------------------------/
    // - Class/Member Variables -/
    // --------------------------/

import org.apache.maven.model.building.ModelProblemCollector;

/**
 * Handles the import of dependency management from other models into the target model.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultDependencyManagementImporter implements DependencyManagementImporter {

    @Override
    public void importManagement(

 * wraps that source with a {@link PrefixedValueSourceWrapper} instance, to which
 * this class delegates all of its calls.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class PrefixedObjectValueSource extends AbstractDelegatingValueSource implements QueryEnabledValueSource {

    /**