if (hashTable == null) {
        return this;
      }
      int targetTableSize = chooseTableSize(distinct);
      if (targetTableSize * 2 < hashTable.length) {
        hashTable = rebuildHashTable(targetTableSize, dedupedElements, distinct);
        maxRunBeforeFallback = maxRunBeforeFallback(targetTableSize);
        expandTableThreshold = (int) (DESIRED_LOAD_FACTOR * targetTableSize);
      }