public interface PluginRealmCache {
    /**
     * CacheRecord
     */
    class CacheRecord {
        public ClassRealm getRealm() {
            return realm;
        }

        public List<Artifact> getArtifacts() {
            return artifacts;
        }

        private final ClassRealm realm;

        private final List<Artifact> artifacts;

        public CacheRecord(ClassRealm realm, List<Artifact> artifacts) {

        } else {
            return new ArrayList<>();
        }
    }

    public ProjectRealmCache.CacheRecord createProjectRealm(
            MavenProject project, Model model, ProjectBuildingRequest request) {
        return new ProjectRealmCache.CacheRecord(null, null);
    }

    public void selectProjectRealm(MavenProject project) {}

)

var errAuthnCrash = apierrors.NewInternalError(errors.New("authentication failed unexpectedly"))

const sharedLookupTimeout = 30 * time.Second

// cacheRecord holds the three return values of the authenticator.Token AuthenticateToken method
type cacheRecord struct {
	resp *authenticator.Response
	ok   bool
	err  error

	// this cache assumes token authn has no side-effects or temporal dependence.

            pluginDescriptor.setArtifacts(new ArrayList<>(cacheRecord.getArtifacts()));
            for (ComponentDescriptor<?> componentDescriptor : pluginDescriptor.getComponents()) {
                componentDescriptor.setRealm(cacheRecord.getRealm());
            }

            pluginRealmCache.register(project, cacheKey, cacheRecord);
        }
    }

        }

        artifactRepositories = repositorySystem.getEffectiveRepositories(artifactRepositories);

        return artifactRepositories;
    }

    public synchronized ProjectRealmCache.CacheRecord createProjectRealm(
            MavenProject project, Model model, ProjectBuildingRequest request)
            throws PluginResolutionException, PluginVersionResolutionException, PluginManagerException {

                            e);
        }
        project.setPluginArtifactRepositories(pluginRepositories);

        if (event.request().isProcessPlugins()) {
            try {
                ProjectRealmCache.CacheRecord record =
                        projectBuildingHelper.createProjectRealm(project, model, projectBuildingRequest);

                project.setClassRealm(record.getRealm());

     * @return The record with the project realm and extension artifact filter, never {@code null}.
     * @throws PluginResolutionException If any build extension could not be resolved.
     */
    ProjectRealmCache.CacheRecord createProjectRealm(MavenProject project, Model model, ProjectBuildingRequest request)
            throws PluginResolutionException, PluginVersionResolutionException, PluginManagerException;

    /**

	tokenCount int
	// pre-computed response for a token
	tokenToResponse map[string]*cacheRecord
	// include audiences for some
	tokenToAuds map[string]authenticator.Audiences
	// a list makes it easy to select a random one
	tokens []string
}

func (s *singleBenchmark) makeTokens() {
	s.tokenToResponse = map[string]*cacheRecord{}
	s.tokenToAuds = map[string]authenticator.Audiences{}
	s.tokens = []string{}

    /**
     * Sets up class realm for the specified build extensions plugin.
     *
     * @since 3.3.0
     */
    ExtensionRealmCache.CacheRecord setupExtensionsRealm(
            MavenProject project, Plugin plugin, RepositorySystemSession session) throws PluginManagerException;

    /**

        ProjectArtifactsCache.Key cacheKey = projectArtifactsCache.createKey(
                project, scopesToCollect, scopesToResolve, aggregating, session.getRepositorySession());

        ProjectArtifactsCache.CacheRecord recordArtifacts;
        recordArtifacts = projectArtifactsCache.get(cacheKey);
        if (recordArtifacts == null) {
            synchronized (cacheKey) {