* methods that they depend on are thread-safe.
 *
 * @author Kevin Bourrillion
 * @author Louis Wasserman
 * @since 2.0
 */
@GwtCompatible
public abstract class ForwardingCollection<E extends @Nullable Object> extends ForwardingObject
    implements Collection<E> {
  // TODO(lowasser): identify places where thread safety is actually lost

  /** Constructor for use by subclasses. */
  protected ForwardingCollection() {}

 */
@GwtIncompatible
public class SetTestSuiteBuilder<E>
    extends AbstractCollectionTestSuiteBuilder<SetTestSuiteBuilder<E>, E> {
  public static <E> SetTestSuiteBuilder<E> using(TestSetGenerator<E> generator) {
    return new SetTestSuiteBuilder<E>().usingGenerator(generator);
  }

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {

public class ConcurrentMapTestSuiteBuilder<K, V> extends MapTestSuiteBuilder<K, V> {
  public static <K, V> ConcurrentMapTestSuiteBuilder<K, V> using(TestMapGenerator<K, V> generator) {
    ConcurrentMapTestSuiteBuilder<K, V> result = new ConcurrentMapTestSuiteBuilder<>();
    result.usingGenerator(generator);
    return result;
  }

  @SuppressWarnings("rawtypes") // class literals
  static final List<? extends Class<? extends AbstractTester>> TESTERS =

public class ConcurrentMapTestSuiteBuilder<K, V> extends MapTestSuiteBuilder<K, V> {
  public static <K, V> ConcurrentMapTestSuiteBuilder<K, V> using(TestMapGenerator<K, V> generator) {
    ConcurrentMapTestSuiteBuilder<K, V> result = new ConcurrentMapTestSuiteBuilder<>();
    result.usingGenerator(generator);
    return result;
  }

  @SuppressWarnings("rawtypes") // class literals
  static final List<? extends Class<? extends AbstractTester>> TESTERS =

/**
 * Creates sorted maps, containing sample elements, to be tested.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public interface TestSortedMapGenerator<K extends @Nullable Object, V extends @Nullable Object>
    extends TestMapGenerator<K, V> {
  @Override
  SortedMap<K, V> create(Object... elements);

  /**
   * Returns an entry with a key less than the keys of the {@link #samples()} and less than the key

   */
  private static final class TransformingSequentialList<
          F extends @Nullable Object, T extends @Nullable Object>
      extends AbstractSequentialList<T> implements Serializable {
    final List<F> fromList;
    final Function<? super F, ? extends T> function;

    TransformingSequentialList(List<F> fromList, Function<? super F, ? extends T> function) {
      this.fromList = checkNotNull(fromList);

    setImplementation(Executor.class, Dummies.DummyExecutor.class);
  }

  @SuppressWarnings("unchecked") // it's a subtype map
  private static <T> @Nullable Class<? extends T> getImplementation(Class<T> type) {
    return (Class<? extends T>) implementations.get(type);
  }

  private static final Logger logger = Logger.getLogger(ArbitraryInstances.class.getName());

  /**

    /**
     * SAMR CloseHandle operation for closing an opened SAM handle.
     * This operation releases resources associated with the handle.
     */
    public static class SamrCloseHandle extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x01;
        }

        /** The return value of the operation */
        public int retval;

    /**
     * SAMR CloseHandle operation for closing an opened SAM handle.
     * This operation releases resources associated with the handle.
     */
    public static class SamrCloseHandle extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x01;
        }

        /** The return value of the operation */
        public int retval;

   *
   * @since 21.0
   */
  public static <T extends @Nullable Object, K, V>
      Collector<T, ?, ImmutableBiMap<K, V>> toImmutableBiMap(
          Function<? super T, ? extends K> keyFunction,
          Function<? super T, ? extends V> valueFunction) {
    return CollectCollectors.toImmutableBiMap(keyFunction, valueFunction);
  }

  /**