Hi, I'm looking at the possibility of using Drools to store the working state of my app, in the form of rules. Can JTA Persistence store fact objects? I read that the fact objects must be Serializable - are there other requirements or caveats? Can JTA Persistence take care of High Availability? Even if the system goes down in the middle of a rules computation? Assuming the database handling the JPA is a HA system. Thanks! Miguel