if (hashTablePlus instanceof Object[]) {
      Object[] hashTableAndSizeAndDuplicate = (Object[]) hashTablePlus;
      Builder.DuplicateKey duplicateKey = (Builder.DuplicateKey) hashTableAndSizeAndDuplicate[2];
      if (builder == null) {
        throw duplicateKey.exception();
      }
      builder.duplicateKey = duplicateKey;
      hashTable = hashTableAndSizeAndDuplicate[0];
      n = (Integer) hashTableAndSizeAndDuplicate[1];