implements Supplier<T>, Serializable {
    private transient Object lock = new Object();

    final Supplier<T> delegate;
    transient volatile boolean initialized;
    // "value" does not need to be volatile; visibility piggy-backs
    // on volatile read of "initialized".
    transient @Nullable T value;

    MemoizingSupplier(Supplier<T> delegate) {

  static final NaturalOrdering INSTANCE = new NaturalOrdering();

  // TODO: b/287198172 - Consider eagerly initializing these (but think about serialization).
  @LazyInit private transient @Nullable Ordering<@Nullable Comparable<?>> nullsFirst;
  @LazyInit private transient @Nullable Ordering<@Nullable Comparable<?>> nullsLast;

  @Override
  @SuppressWarnings("unchecked") // TODO(kevinb): the right way to explain this??

 *
 * @author Louis Wasserman
 */
@GwtCompatible
final class CartesianList<E> extends AbstractList<List<E>> implements RandomAccess {

  private final transient ImmutableList<List<E>> axes;
  private final transient int[] axesSizeProduct;

  static <E> List<List<E>> create(List<? extends List<? extends E>> lists) {
    ImmutableList.Builder<List<E>> axesBuilder = new ImmutableList.Builder<>(lists.size());

  @Nullable private transient Comparator<? super E> comparator;

  @Override
  public Comparator<? super E> comparator() {
    Comparator<? super E> result = comparator;
    if (result == null) {
      return comparator = Ordering.from(forwardMultiset().comparator()).<E>reverse();
    }
    return result;
  }

  @Nullable private transient SortedSet<E> elementSet;

  @Override

   * </pre>
   *
   * <p>The pointers in [size(), entries.length) are all "null" (UNSET).
   */
  private transient int @Nullable [] entries;

  /**
   * The elements contained in the set, in the range of [0, size()). The elements in [size(),
   * elements.length) are all {@code null}.
   */
  @VisibleForTesting transient @Nullable Object @Nullable [] elements;

  /**

  }

  private transient @Nullable ImmutableSet<Entry<K, V>> cachedEntrySet = null;

  @Override
  public final ImmutableSet<Entry<K, V>> entrySet() {
    if (cachedEntrySet != null) {
      return cachedEntrySet;
    }
    return cachedEntrySet = createEntrySet();
  }

  abstract ImmutableSet<Entry<K, V>> createEntrySet();

  private transient @Nullable ImmutableSet<K> cachedKeySet = null;

    private static final long serialVersionUID = 1L;

    /**
     * The target class.
     */
    protected final Class<?> targetClass;

    /**
     * The target field.
     */
    protected final transient Field targetField;

    /**
     * Creates a new {@link BeanFieldSetAccessibleFailureException} with the specified cause.
     *
     * @param componentClass
     *            the component class

    private static final long serialVersionUID = 1L;

    /**
     * The target class.
     */
    protected final Class<?> targetClass;

    /**
     * The target method.
     */
    protected final transient Method targetMethod;

    /**
     * Creates a new {@link BeanMethodSetAccessibleFailureException} with the specified cause.
     *
     * @param componentClass
     *            the component class

  static final RegularImmutableMultiset<Object> EMPTY =
      new RegularImmutableMultiset<>(ObjectCountHashMap.create());

  final transient ObjectCountHashMap<E> contents;
  private final transient int size;

  @LazyInit private transient @Nullable ImmutableSet<E> elementSet;

  RegularImmutableMultiset(ObjectCountHashMap<E> contents) {
    this.contents = contents;
    long size = 0;

	Create bool

	// Include pure directories.
	IncludeDirectories bool

	// Transient is set if the cache is transient due to an error or being a reserved bucket.
	// This means the cache metadata will not be persisted on disk.
	// A transient result will never be returned from the cache so knowing the list id is required.
	Transient bool

	// Versioned is this a ListObjectVersions call.
	Versioned bool
	// V1 listing type