Hi all, while reviewing 4.9 release I found this problem around a change about EnsemblePlacementPolicy
this is the issue https://github.com/apache/bookkeeper/issues/1914 The problem is that in public API we should not use third party classes in order to preserve compatibility with incompatible changes of the third party library. We already had such problems in the past. I think the best way to address this problem is to introduce one specific class in BookKeeper, maybe an inner class of EnsemblePlacementPolicy. If we agree on this solution I can send the patch, it is very straightforward Regards Enrico