private static int getNext(long entry) {
    return (int) entry;
  }

  /** Returns a new entry value by changing the "next" index of an existing entry */
  private static long swapNext(long entry, int newNext) {
    return (HASH_MASK & entry) | (NEXT_MASK & newNext);
  }

  void ensureCapacity(int minCapacity) {
    if (minCapacity > entries.length) {
      resizeEntries(minCapacity);
    }