@Override
  protected void setUp() {
    ExecutorService executor = newSingleThreadExecutor();
    tearDownStack.addTearDown(executor::shutdownNow);
    sleeper = new SleepingRunnable(1000);
    delayedFuture = executor.submit(sleeper, true);

    tearDownStack.addTearDown(() -> Thread.interrupted());
  }

  @Override
  protected void tearDown() {
    tearDownStack.runTearDown();
  }

  }

  @Override
  public UnmodifiableIterator<C> iterator() {
    return new AbstractSequentialIterator<C>(first()) {
      final C last = last();

      @Override
      protected @Nullable C computeNext(C previous) {
        return equalsOrThrow(previous, last) ? null : domain.next(previous);
      }
    };
  }

  @GwtIncompatible // NavigableSet
  @Override

 * for web API requests.
 */
public class WebApiRequest extends HttpServletRequestWrapper {
    /**
     * The custom servlet path for this web API request.
     */
    protected String servletPath;

    /**
     * Constructs a WebApiRequest with the specified request and servlet path.
     *
     * @param request The original HTTP servlet request

        if (logger.isInfoEnabled()) {
            logger.info("Loaded {}", this.getClass().getSimpleName());
        }
        dictionaryManager.addCreator(this);
    }

    @Override
    protected DictionaryFile<? extends DictionaryItem> newDictionaryFile(final String id, final String path, final Date timestamp) {
        return new CharMappingFile(id, path, timestamp).manager(dictionaryManager);
    }

    }
    return create(array);
  }

  /**
   * Creates a new collection containing the given elements; implement this method instead of {@link
   * #create(Object...)}.
   */
  protected abstract List<Character> create(Character[] elements);

  @Override
  public Character[] createArray(int length) {
    return new Character[length];
  }

  /** Returns the original element list, unchanged. */

    }
    return create(array);
  }

  /**
   * Creates a new collection containing the given elements; implement this method instead of {@link
   * #create(Object...)}.
   */
  protected abstract T create(UnhashableObject[] elements);

  @Override
  public UnhashableObject[] createArray(int length) {
    return new UnhashableObject[length];
  }

  @Override

        .testEquals();
  }

  private static <K, V> ListMultimap<K, V> wrap(ListMultimap<K, V> delegate) {
    return new ForwardingListMultimap<K, V>() {
      @Override
      protected ListMultimap<K, V> delegate() {
        return delegate;
      }
    };
  }

      array[i++] = (String) e;
    }
    return create(array);
  }

  /**
   * Creates a new collection containing the given elements; implement this method instead of {@link
   * #create(Object...)}.
   */
  protected abstract List<String> create(String[] elements);

  @Override
  public String[] createArray(int length) {
    return new String[length];
  }

  /** Returns the original element list, unchanged. */
  @Override

        .testEquals();
  }

  private static <K, V> ListMultimap<K, V> wrap(ListMultimap<K, V> delegate) {
    return new ForwardingListMultimap<K, V>() {
      @Override
      protected ListMultimap<K, V> delegate() {
        return delegate;
      }
    };
  }

        .testEquals();
  }

  private static <K, V> SetMultimap<K, V> wrap(SetMultimap<K, V> delegate) {
    return new ForwardingSetMultimap<K, V>() {
      @Override
      protected SetMultimap<K, V> delegate() {
        return delegate;
      }
    };
  }