*/

  /** Base class for {@link InternalEntry} implementations for strong keys. */
  abstract static class AbstractStrongKeyEntry<K, V, E extends InternalEntry<K, V, E>>
      implements InternalEntry<K, V, E> {
    final K key;
    final int hash;

    AbstractStrongKeyEntry(K key, int hash) {
      this.key = key;
      this.hash = hash;
    }

    @Override
    public final K getKey() {