return actualOsName.contains(FAMILY_OPENVMS);
            default:
                return actualOsName.contains(family.toLowerCase(Locale.US));
        }
    }

    /**
     * Helper method to determine the current OS family.
     *
     * @return name of current OS family.
     */
    private static String getOsFamily() {
        return Stream.of(
                        FAMILY_DOS,

            throw new MetadataGraphTransformationException(e);
        }
    }

    // ===================================================================================================
    /**
     * Helper class to traverse graph. Required to make the containing method thread-safe
     * and yet use class level data to lessen stack usage in recursion
     */
    private class ClasspathGraphVisitor {
        MetadataGraph graph;

        this.depth = depth;
        this.resolved = resolved;
        this.pomOrder = pomOrder;
    }
    // ----------------------------------------------------------------------------
    /**
     * helper for equals
     */
    private static boolean objectsEqual(Object o1, Object o2) {
        if (o1 == null && o2 == null) {
            return true;
        }
        if (o1 == null || o2 == null) {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.metadata;

import org.apache.maven.artifact.ArtifactScopeEnum;

/**
 * Helper class to convert a metadata Graph into some form of a classpath
 *
 *
 */
@Deprecated
public interface ClasspathTransformation {
    String ROLE = ClasspathTransformation.class.getName();

    /**

    private int id;

    // Constructor
    ArtifactScopeEnum(int id) {
        this.id = id;
    }

    int getId() {
        return id;
    }

    /**
     * Helper method to simplify null processing
     *
     * @param scope a scope or {@code null}
     * @return the provided scope or DEFAULT_SCOPE
     */
    public static ArtifactScopeEnum checkScope(ArtifactScopeEnum scope) {

import org.codehaus.plexus.configuration.PlexusConfigurationException;

/**
 * Exception which occurs to indicate that the plugin cannot be initialized due
 * to some deeper problem with Plexus. Context information includes the groupId,
 * artifactId, and version for the plugin; at times, the goal name for which
 * execution failed; a message detailing the problem; the ClassRealm used to

              </params>
            </configuration>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>build-helper-maven-plugin</artifactId>
        <executions>
          <execution>
            <goals>
              <goal>attach-artifact</goal>
            </goals>
            <configuration>
              <artifacts>

            the filesystem, then the local repository, and lastly in the remote repo.
            {@code relativePath} allows you to select a different location,
            for example when your structure is flat, or deeper without an intermediate parent POM.
            However, the group ID, artifact ID and version are still required,
            and must match the file in the location given, or it will revert to the repository for the POM.

    final Map<Path, Holder> modelByPath = new ConcurrentHashMap<>();

    final Map<GAKey, Holder> modelByGA = new ConcurrentHashMap<>();

    public static class Holder {
        private volatile boolean set;
        private volatile Model model;

        Holder() {}

        Holder(Model model) {
            this.model = Objects.requireNonNull(model);

                Model model = findRawModel(from, gId, aId);
                if (model != null) {
                    context.modelByGA.put(new GAKey(gId, aId), new Holder(model));
                    context.modelByPath.put(model.getPomFile(), new Holder(model));
                }
                return model;
            }

            @Override
            public Model getRawModel(Path from, Path path) {