import org.eclipse.aether.impl.MetadataGenerator;
import org.eclipse.aether.impl.MetadataGeneratorFactory;
import org.eclipse.aether.installation.InstallRequest;

/**
 * Maven GA level metadata generator factory.
 */
@Named(VersionsMetadataGeneratorFactory.NAME)
@Singleton
public class VersionsMetadataGeneratorFactory implements MetadataGeneratorFactory {
    public static final String NAME = "versions";

                projectPrefixValueSource =
                        new ProblemDetectingValueSource(projectPrefixValueSource, PREFIX_POM, PREFIX_PROJECT, problems);
            }

            prefixlessObjectBasedValueSource = new ObjectBasedValueSource(model);
            if (request.getValidationLevel() >= ModelBuilderRequest.VALIDATION_LEVEL_MAVEN_2_0) {

    /**
     * Gets the problems that were encountered during the settings building. Note that only problems of severity
     * {@link BuilderProblem.Severity#WARNING} and below are reported here. Problems with a higher severity level cause
     * the settings builder to fail with a {@link ToolchainsBuilderException}.
     *
     * @return the problems that were encountered during the settings building, can be empty but never {@code null}
     */

import java.nio.file.Path;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;

import org.apache.maven.api.metadata.Metadata;
import org.apache.maven.api.metadata.Plugin;

/**
 * Maven G level metadata.
 */
final class PluginsMetadata extends MavenMetadata {
    static final class PluginInfo {
        final String groupId;

        private final String artifactId;

import org.apache.maven.api.metadata.Metadata;
import org.apache.maven.api.metadata.Versioning;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.artifact.ArtifactProperties;

/**
 * Maven GA level metadata.
 */
final class VersionsMetadata extends MavenMetadata {

    private final Artifact artifact;

    VersionsMetadata(Artifact artifact, Date timestamp) {

            case FAMILY_MAC:
                return actualOsName.contains(FAMILY_MAC) || actualOsName.contains(DARWIN);
            case FAMILY_TANDEM:
                return actualOsName.contains("nonstop_kernel");
            case FAMILY_UNIX:
                return PATH_SEP.equals(":")
                        && !isFamily(FAMILY_OPENVMS, actualOsName)

            throws ModelBuilderException {
        Model model;
        problems.setSource(modelSource.getLocation());
        try {
            boolean strict = request.getValidationLevel() >= ModelBuilderRequest.VALIDATION_LEVEL_MAVEN_2_0;

            try (InputStream is = modelSource.openStream()) {
                model = modelProcessor.read(XmlReaderRequest.builder()
                        .strict(strict)

     *   <li><b>Module hierarchy:</b> if {@code module-info.class} files are found in sub-directories,
     *       at a deep intentionally restricted to one level, then builds a map of module names found
     *       in the descriptor of each sub-directory.</li>
     * </ul>
     *
     * Otherwise if the given path is a JAR file, then there is a choice:
     * <ul>

        assertEquals("https://devel.org", pom.getValue("developers[1]/organizationUrl"));
        assertEquals("-1", pom.getValue("developers[1]/timezone"));
        assertEquals("yes", pom.getValue("developers[1]/properties/developer"));
        assertEquals(1, ((List<?>) pom.getValue("developers[1]/roles")).size());
        assertEquals("devel", pom.getValue("developers[1]/roles[1]"));

                            if (executionId.equals(execution.getId())) {
                                // NOTE: The PluginConfigurationExpander already merged the plugin-level config in
                                dom = (Xpp3Dom) execution.getConfiguration();
                                break;
                            }
                        }
                    }