[infinispan-dev] XA transactions on a single CacheManager?

Hi all, I just noticed that when I'm making changes to multiple caches within the same transaction, the transaction manager will treat this as XA transactions. That seems suboptimal as they are all managed by the same resource; is there a configuration I'm missing or should I open a JIRA to ask for an improvement? I'm not just asking for performance reasons: having to setup a transaction manager is an annoying configuration step for Java SE users. Thanks, Sanne