VersionRange cached = CACHE_VERSION.get(version);
        if (cached == null) {
            List<Restriction> restrictions = Collections.emptyList();
            cached = new VersionRange(new DefaultArtifactVersion(version), restrictions);
            CACHE_VERSION.put(version, cached);
        }
        return cached;
    }

    /**

    /**
     * Creates an initially empty cache.
     */
    PathModularizationCache() {
        moduleInfo = new HashMap<>();
        pathTypes = new HashMap<>();
    }

    /**
     * Gets module information for the given JAR file or output directory.
     * Module descriptors are read when first requested, then cached.
     */
    PathModularization getModuleInfo(Path path) throws IOException {

        }

        ResolutionGroup cached = cache.get(
                artifact,
                request.isResolveManagedVersions(),
                request.getLocalRepository(),
                request.getRemoteRepositories());

        if (cached != null
                // if the POM has no file, we cached a missing artifact, only return the cached data if no update forced

    /**
     * Creates an initially empty cache.
     */
    PathModularizationCache() {
        moduleInfo = new HashMap<>();
        pathTypes = new HashMap<>();
    }

    /**
     * Gets module information for the given JAR file or output directory.
     * Module descriptors are read when first requested, then cached.
     */
    PathModularization getModuleInfo(Path path) throws IOException {

            ClassRealm realm = record.getRealm();
            try {
                realm.getWorld().disposeRealm(realm.getId());
            } catch (NoSuchRealmException e) {
                // ignore
            }
        }
        cache.clear();
    }

    public void register(MavenProject project, Key key, CacheRecord record) {
        // default cache does not track record usage
    }

        if (lookup == null) {
            return customLifecycles != null ? customLifecycles : new HashMap<>();
        }

        // Lifecycles cannot be cached as extensions might add custom lifecycles later in the execution.
        try {
            Map<String, Lifecycle> lifecycles = new HashMap<>(lookup.lookupMap(Lifecycle.class));

        if (cache.containsKey(key)) {
            throw new IllegalStateException("Duplicate plugin realm for plugin " + key);
        }

        CacheRecord record = new CacheRecord(pluginRealm, pluginArtifacts);

        cache.put(key, record);

        return record;
    }

    public void flush() {
        for (CacheRecord record : cache.values()) {

    /**
     * Puts the specified data into the cache. <strong>Warning:</strong> The cache will directly save the provided
     * reference. If the cached data is mutable, i.e. could be modified after being put into the cache, the caller is
     * responsible for creating a copy of the original data and store the copy in the cache.
     *
     * @param request The repository request from which this cache was retrieved, must not be {@code null}.

import org.apache.maven.api.services.xml.XmlReaderRequest;

@Named
@Singleton
public class DefaultSuperPomProvider implements SuperPomProvider {

    private final ModelProcessor modelProcessor;

    /**
     * The cached super POM, lazily created.
     */
    private static final Map<String, Model> SUPER_MODELS = new ConcurrentHashMap<>();

    @Inject
    public DefaultSuperPomProvider(ModelProcessor modelProcessor) {

                requests.add(new MetadataRequest(metadata, repository, REPOSITORY_CONTEXT).setTrace(trace));
            }
        }

        // initial try, use locally cached metadata

        List<MetadataResult> results = repositorySystem.resolveMetadata(request.getRepositorySession(), requests);
        requests.clear();