@Test
    void testMojoDescriptorRetrieval() throws Exception {
        MavenSession session = createMavenSession(null);
        String goal = "it";
        Plugin plugin = new Plugin();
        plugin.setGroupId("org.apache.maven.its.plugins");
        plugin.setArtifactId("maven-it-plugin");
        plugin.setVersion("0.1");

        MojoDescriptor mojoDescriptor = pluginManager.getMojoDescriptor(
                plugin,

         * the association between the artifacts of the same project.
         */
        for (Iterator<? extends Metadata> it = metadatas.iterator(); it.hasNext(); ) {
            Metadata metadata = it.next();
            if (metadata instanceof VersionsMetadata) {
                it.remove();
                VersionsMetadata versionsMetadata = (VersionsMetadata) metadata;

         * the association between the artifacts of the same project.
         */
        for (Iterator<? extends Metadata> it = metadatas.iterator(); it.hasNext(); ) {
            Metadata metadata = it.next();
            if (metadata instanceof PluginsMetadata pluginMetadata) {
                it.remove();
                processedPlugins.put(pluginMetadata.getGroupId(), pluginMetadata);
            }
        }
    }

    public XmlNode getChild(String name) {
        if (name != null) {
            ListIterator<XmlNode> it = children.listIterator(children.size());
            while (it.hasPrevious()) {
                XmlNode child = it.previous();
                if (name.equals(child.getName())) {
                    return child;
                }
            }
        }

import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.metadata.RepositoryMetadataStoreException;

/**
 * Contains metadata about an artifact, and methods to retrieve/store it from an artifact repository.
 * TODO merge with artifactmetadatasource
 * TODO retrieval exception not appropriate for store
 *
 */
public interface ArtifactMetadata {
    /**

    // TODO This is too early for build extensions, so maybe just remove it?
    public void afterSessionStart(MavenSession session) throws MavenExecutionException {
        // do nothing
    }

    /**
     * Invoked after all projects were built.
     *
     * This callback is intended to allow extensions to perform cleanup of any
     * allocated external resources after the build. It is invoked on best-effort

     * consumer project.
     * <p>
     * Note: This property is about "build path", whatever it means in the scope of the consumer project. It is NOT
     * about Java classpath or anything alike. How artifact is being consumed depends heavily on the consumer project.
     * Resolver is and will remain agnostic of consumer project use cases.
     */

     * @see BuildResumptionDataRepository
     * @return <code>true</code> when it is possible to resume the build, <code>false</code> otherwise.
     */
    boolean canResume();

    /**
     * Indicate that the build can or cannot be resumed by a second invocation of Maven.
     * @param canResume <code>true</code> when it is possible to resume the build, <code>false</code> otherwise.
     * @see BuildResumptionDataRepository

/**
 * A {@link TransferListener} implementation that wraps another delegate {@link TransferListener} but makes it run
 * on single thread, keeping the listener logic simple. This listener also blocks on last transfer event to allow
 * output to perform possible cleanup. It spawns a daemon thread to consume queued events that may fall in even
 * concurrently.
 *
 * @since 4.0.0
 */

     *         the restrictions are empty, this version range's recommended version is used if it is not
     *         <code>null</code>. If it is <code>null</code>, the specified version range's recommended
     *         version is used (provided it is non-<code>null</code>). If no recommended version can be