* delegation to save code size.
 *
 * @author Hayward Chan
 */
final class ForwardingImmutableCollection<E> extends ImmutableCollection<E> {

  final transient Collection<E> delegate;

  ForwardingImmutableCollection(Collection<E> delegate) {
    this.delegate = delegate;
  }

  @Override
  public UnmodifiableIterator<E> iterator() {

package org.apache.maven.artifact.repository.metadata;

import java.io.Serializable;

import static java.util.Objects.requireNonNull;

public abstract class BaseObject implements Serializable, Cloneable {
    protected transient ChildrenTracking childrenTracking;

    protected Object delegate;

    public BaseObject() {}

    public BaseObject(Object delegate, BaseObject parent) {

        return severity == Severity.RECOVERABLE || severity == Severity.TRANSIENT;
    }

    /**
     * Checks if retry should be attempted
     *
     * @return true if retry is recommended
     */
    public boolean shouldRetry() {
        return severity == Severity.RECOVERABLE || severity == Severity.TRANSIENT;
    }

    /**
     * Gets recommended retry delay in milliseconds
     *

 *
 * @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());

    return Multisets.retainAllImpl(this, elementsToRetain);
  }

  @Override
  public abstract void clear();

  // Views

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

  @Override
  public Set<E> elementSet() {
    Set<E> result = elementSet;
    if (result == null) {
      elementSet = result = createElementSet();
    }
    return result;

    for (Table.Cell<? extends R, ? extends C, ? extends V> cell : table.cellSet()) {
      put(cell.getRowKey(), cell.getColumnKey(), cell.getValue());
    }
  }

  @LazyInit private transient @Nullable Set<Cell<R, C, V>> cellSet;

  @Override
  public Set<Cell<R, C, V>> cellSet() {
    Set<Cell<R, C, V>> result = cellSet;
    return (result == null) ? cellSet = createCellSet() : result;
  }

    }
  }

  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;

   * </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;

  /**

        protected String id;

        protected Long version;

        protected Long seqNo;

        protected Long primaryTerm;

        private transient RequestOptionCall<IndexRequestBuilder> indexOption;

        private transient RequestOptionCall<DeleteRequestBuilder> deleteOption;

        public DocMeta id(String id) {
            this.id = id;
            myuniqueByProperty("_id");

   * calls `create(Foo.class)`, rather than `create(map)`. That's fine; we just shouldn't rely on
   * it.
   */
  transient Class<K> keyTypeOrObjectUnderJ2cl;
  transient Class<V> valueTypeOrObjectUnderJ2cl;

  /**
   * Returns a new, empty {@code EnumBiMap} using the specified key and value types.
   *
   * @param keyType the key type