@Override
  public void closeAndUnsafelyUnmap() throws IOException {
    ExceptionUtil.runAllAndRethrowAllExceptions(
      IOException.class,
      () -> new IOException("Can't .closeAndUnsafelyUnmap() " + contentStorage + "/" + hashToContentRecordIdMap),
      contentStorage::closeAndUnsafelyUnmap,
      hashToContentRecordIdMap::closeAndUnsafelyUnmap,
      otelCallback::close
    );
  }
@Override
  public void closeAndUnsafelyUnmap()