public ClassRealm getClassRealm() {
        return realm;
    }

    /**
     * Returns artifacts exported by the extension, identified by groupId:artifactId string key.
     */
    public Set<String> getExportedArtifacts() {
        return artifacts;
    }

    /**
     * Returns classpath elements exported by the extension.
     */
    public Set<String> getExportedPackages() {
        return packages;
    }

                    exclusions.addAll(excludes);
                }

                List<String> exports = exportedPackages.get(extensionRealm);

                if (exports == null || exports.isEmpty()) {
                    /*
                     * Most existing extensions don't define exported packages, i.e. no classes are to be exposed to

    private final CoreExports exports;

    @Inject
    public CoreExportsProvider(CoreRealm coreRealm) {
        this(new CoreExports(CoreExtensionEntry.discoverFrom(coreRealm.getRealm())));
    }

    public CoreExportsProvider(CoreExports exports) {
        this.exports = Objects.requireNonNull(exports);
    }

    public CoreExports get() {
        return exports;
    }

    public DefaultClassRealmManager(
            CoreRealm coreRealm, List<ClassRealmManagerDelegate> delegates, CoreExports exports) {
        this.world = coreRealm.getClassWorld();
        this.containerRealm = coreRealm.getRealm();
        this.delegates = delegates;

        Map<String, ClassLoader> foreignImports = exports.getExportedPackages();

        this.mavenApiRealm = createRealm(
                API_REALMID,

    public static final String ROLE = "admin-accesstoken";

    public static final String TOKEN = "token";

    public static final String EXPIRES = "expires";

    public static final String EXPIRED_TIME = "expiredTime";

    // ===================================================================================

    // 0 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(1, 2, 3, 4, 5, 6, 7, 8, 9);

    // reorder
    getAll(cache, asList(0, 1, 2));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(2, MILLISECONDS);
    assertThat(keySet).containsExactly(3, 4, 5, 6, 7, 8, 9, 0, 1, 2);

    // 3 expires
    ticker.advance(1, MILLISECONDS);

  @AndroidIncompatible // Presumably GC doesn't trigger, despite our efforts.
  public void testWeakImplementations() {
    for (Striped<?> striped : weakImplementations()) {
      WeakReference<Object> weakRef = new WeakReference<>(striped.get(new Object()));
      GcFinalization.awaitClear(weakRef);
    }
  }

  @AndroidIncompatible // Presumably GC doesn't trigger, despite our efforts.
  public void testWeakReadWrite() {

 * iterator generator may delegate the work of creating the underlying collection to an inner
 * collection generator.
 *
 * <p>{@code GwtTestSuiteGenerator} expects every {@code DerivedIterator} implementation to provide
 * a one-arg constructor accepting its inner generator as an argument. This requirement enables it

     * for finalName directly in the plugin configuration section. It is also useful to ensure that - for example - a
     * List-typed parameter which expects items of type Artifact doesn't get a List full of Strings.
     *
     * @return <code>true</code> if the user should not be allowed to configure the parameter directly
     */
    boolean readonly() default false;

    assertEquals(3, uniqueEntries.size());
  }

  // Wrapper of EnumMultiset factory methods, because we need to skip create(Class).
  // create(Enum1.class) is equal to create(Enum2.class) but testEquals() expects otherwise.
  // For the same reason, we need to skip create(Iterable, Class).
  private static class EnumMultisetFactory {
    public static <E extends Enum<E>> EnumMultiset<E> create(Iterable<E> elements) {