* contract.
 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Louis Wasserman
 * @since 12.0
 */
@GwtIncompatible
public abstract class ForwardingNavigableSet<E extends @Nullable Object>

     * ?? According to spec this is NTLMSSP_NEGOTIATE_IDENTIFY
     *
     * If set, requests an identify level token
     */
    int NTLMSSP_REQUEST_ACCEPT_RESPONSE = 0x00200000;

    /**
     * Requests the usage of the LMOWF
     */
    int NTLMSSP_REQUEST_NON_NT_SESSION_KEY = 0x00400000;

    /**
     * Sent by the server in the Type 2 message to indicate that it is

        assertTrue(exception instanceof java.io.Serializable);
    }

    /**
     * Helper class for testing - not actually needed but demonstrates IOException usage
     */
    private static class IOException extends Exception {
        public IOException(String message) {
            super(message);
        }
    }

   *
   * TODO(cpovirk): So make it part of the open-source build, albeit package-private there?
   *
   * So we use uncheckedCastNullableTToT here. This is a weird usage of that method: The method is
   * documented as being for use with type parameters that have parametric nullness. But Converter's
   * type parameters do not. Still, we use it here so that we can suppress a warning at a smaller

  @Override
  @ParametricNullness
  public final T next() {
    if (!hasNext()) {
      throw new NoSuchElementException();
    }
    state = State.NOT_READY;
    // Safe because hasNext() ensures that tryToComputeNext() has put a T into `next`.
    T result = uncheckedCastNullableTToT(next);
    next = null;
    return result;
  }

  /**

  }

  /**
   * Returns the empty bimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting to any type is safe because the set will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableBiMap<K, V> of() {
    return (ImmutableBiMap<K, V>) RegularImmutableBiMap.EMPTY;
  }

      }
    } catch (Throwable t) { // this includes CancellationException and sneaky checked exception
      throwable = t;
    }

    if (throwable == null) {
      /*
       * The cast is safe: There was no exception, so the assignment from getDone must have
       * succeeded.
       */
      set(uncheckedCastNullableTToT(sourceResult));
      return;
    }

 * invoke methods, they invoke methods on the {@code ForwardingMultiset}.
 *
 * <p>The {@code standard} methods and any collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Kevin Bourrillion
 * @author Louis Wasserman
 * @since 2.0
 */
@GwtCompatible

  }

  @Override
  public T or(T defaultValue) {
    return checkNotNull(defaultValue, "use Optional.orNull() instead of Optional.or(null)");
  }

  @SuppressWarnings("unchecked") // safe covariant cast
  @Override
  public Optional<T> or(Optional<? extends T> secondChoice) {
    return (Optional<T>) checkNotNull(secondChoice);
  }

  @Override
  public T or(Supplier<? extends T> supplier) {

     * the {@code "Automatic-Module-Name"} attribute of the {@code META-INF/MANIFEST.MF} file if present.
     *
     * <p>A typical usage is to invoke this method for all dependencies having a
     * {@link DependencyScope#TEST TEST} or {@link DependencyScope#TEST_ONLY TEST_ONLY}
     * {@linkplain Dependency#getScope() scope}. An {@code --add-reads} option may need