}

  /** The implementation of {@link Maps#unmodifiableEntrySet(Set)}. */
  static class UnmodifiableEntrySet<K extends @Nullable Object, V extends @Nullable Object>
      extends UnmodifiableEntries<K, V> implements Set<Entry<K, V>> {
    UnmodifiableEntrySet(Set<Entry<K, V>> entries) {
      super(entries);
    }

    // See java.util.Collections.UnmodifiableEntrySet for details on attacks.

    @Override

  }

  /** The implementation of {@link Maps#unmodifiableEntrySet(Set)}. */
  static class UnmodifiableEntrySet<K extends @Nullable Object, V extends @Nullable Object>
      extends UnmodifiableEntries<K, V> implements Set<Entry<K, V>> {
    UnmodifiableEntrySet(Set<Entry<K, V>> entries) {
      super(entries);
    }

    // See java.util.Collections.UnmodifiableEntrySet for details on attacks.

    @Override