<K, V> ReferenceEntry<K, V> newEntry(
          Segment<K, V> segment, K key, int hash, @CheckForNull ReferenceEntry<K, V> next) {
        return new StrongWriteEntry<>(key, hash, next);
      }

      @Override
      <K, V> ReferenceEntry<K, V> copyEntry(
          Segment<K, V> segment,
          ReferenceEntry<K, V> original,
          ReferenceEntry<K, V> newNext,
          K key) {

      <K, V> ReferenceEntry<K, V> newEntry(
          Segment<K, V> segment, K key, int hash, @CheckForNull ReferenceEntry<K, V> next) {
        return new StrongWriteEntry<>(key, hash, next);
      }

      @Override
      <K, V> ReferenceEntry<K, V> copyEntry(
          Segment<K, V> segment,
          ReferenceEntry<K, V> original,
          ReferenceEntry<K, V> newNext,
          K key) {

  }

  private static <K, V> void assertSameEntries(
      List<ReferenceEntry<K, V>> expectedEntries, List<ReferenceEntry<K, V>> actualEntries) {
    int size = expectedEntries.size();
    assertEquals(size, actualEntries.size());
    for (int i = 0; i < size; i++) {
      ReferenceEntry<K, V> expectedEntry = expectedEntries.get(i);
      ReferenceEntry<K, V> actualEntry = actualEntries.get(i);

  }

  private static <K, V> void assertSameEntries(
      List<ReferenceEntry<K, V>> expectedEntries, List<ReferenceEntry<K, V>> actualEntries) {
    int size = expectedEntries.size();
    assertEquals(size, actualEntries.size());
    for (int i = 0; i < size; i++) {
      ReferenceEntry<K, V> expectedEntry = expectedEntries.get(i);
      ReferenceEntry<K, V> actualEntry = actualEntries.get(i);