@Override
  protected void putSpaceFillerRecord(long recordOffset,
                                      int pageSize) throws IOException {
    RecordLayout.PaddingRecord paddingRecord = RecordLayout.PaddingRecord.INSTANCE;

    int offsetInPage = storage.toOffsetInPage(recordOffset);
    int remainingOnPage = pageSize - offsetInPage;

    Page page = storage.pageByOffset(recordOffset);
    int capacity = remainingOnPage - paddingRecord.headerSize();
    paddingRecord.putRecord(page.rawPageBuffer(), offsetInPage, capacity, 0, NULL_ID, null);
  }
@Override
  protected void putSpaceFillerRecord(long recordOffset,
                                      int pageSize)