@Override
  public Set getBucketKeys(LocalRegion localRegion, int bucketId, boolean allowTombstones) {
    PartitionedRegion pr = (PartitionedRegion) localRegion;
    return pr.getBucketKeys(bucketId, allowTombstones);
  }
throws an exception when cloning is disabled while using delta
geode-core/src/main/java/org/apache/geode/internal/cache/TXState.java