I don't think that migrating all the runtime data is a good idea in most of the cases. You will need to analyze if you really need to do that.. or keep the old instances running with the old engine, until they finish and create new instances in the new platform. Did you consider this option?
Hello Mauricio Salatino,
Yes i do agree with point that migration is not good idea as it is not straight forward. But running Jbpm 3.2.3 on Jboss 7 as embedded deployment may not be working as JBPM 3.2.3 uses Hibernate 3 and EJB3 services on Jboss 7 uses Hibernate 4.
Is there any chance that Jbpm 3.2.3 can work on Hibernate 4 also?