* This method is a convenience for testing. Code should call {@link Segment#copyEntry} directly.
   */
  // Guarded By Segment.this
  @SuppressWarnings("GuardedBy")
  @VisibleForTesting
  ReferenceEntry<K, V> copyEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
    int hash = original.getHash();
    return segmentFor(hash).copyEntry(original, newNext);
  }

  /**

   * This method is a convenience for testing. Code should call {@link Segment#copyEntry} directly.
   */
  // Guarded By Segment.this
  @SuppressWarnings("GuardedBy")
  @VisibleForTesting
  ReferenceEntry<K, V> copyEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
    int hash = original.getHash();
    return segmentFor(hash).copyEntry(original, newNext);
  }

  /**

  }

  /**
   * This method is a convenience for testing. Code should call {@link Segment#copyEntry} directly.
   */
  // Guarded By Segment.this
  @VisibleForTesting
  E copyEntry(E original, E newNext) {
    int hash = original.getHash();
    return segmentFor(hash).copyEntry(original, newNext);
  }

  int hash(Object key) {
    int h = keyEquivalence.hash(key);

      ReferenceEntry<Object, Object> copyOne = map.copyEntry(entryOne, null);
      assertSame(keyOne, entryOne.getKey());
      assertEquals(hashOne, entryOne.getHash());
      assertNull(entryOne.getNext());
      assertSame(valueOne, copyOne.getValueReference().get());
      assertConnected(map, copyOne, entryTwo);

      ReferenceEntry<Object, Object> copyTwo = map.copyEntry(entryTwo, copyOne);

      ReferenceEntry<Object, Object> copyOne = map.copyEntry(entryOne, null);
      assertSame(keyOne, entryOne.getKey());
      assertEquals(hashOne, entryOne.getHash());
      assertNull(entryOne.getNext());
      assertSame(valueOne, copyOne.getValueReference().get());
      assertConnected(map, copyOne, entryTwo);

      ReferenceEntry<Object, Object> copyTwo = map.copyEntry(entryTwo, copyOne);