On Wed, Oct 27, 2010 at 5:21 PM, tizo <tizone(a)gmail.com&gt; wrote: Ok, looking at the code, I guess that Drools flow is not ready to work with standards EJBs. The reasons are the following: * The JPA annotations are not standard JPA annotations, but hibernate ones. For example "CollectionOfElements" in ProcessInstanceInfo class. * Transactions are managed by Drools, as opposed to some EJBs where transactions are managed by the container. As for that, I will probably modify the codes, so Flow could be used in our EJBs. I would like to know if someone could guide me on what should I modify. I will post the modifications in case they are of interest to someone. Thanks very much, tizo