void reclaimKey(E entry) {
    int hash = entry.getHash();
    segmentFor(hash).reclaimKey(entry, hash);
  }

  /**
   * This method is a convenience for testing. Code should call {@link Segment#getLiveValue}
   * instead.
   */
  @VisibleForTesting
  boolean isLiveForTesting(InternalEntry<K, V, ?> entry) {
    return segmentFor(entry.getHash()).getLiveValueForTesting(entry) != null;
  }

  /**

  }

  /**
   * This method is a convenience for testing. Code should call {@link Segment#getLiveValue}
   * instead.
   */
  @VisibleForTesting
  boolean isLive(ReferenceEntry<K, V> entry, long now) {
    return segmentFor(entry.getHash()).getLiveValue(entry, now) != null;
  }

  /**
   * Returns the segment that should be used for a key with the given hash.
   *