This page collects all information for running JBoss jBPM on Sap
Bens'tip on getting jBPM to work on SAPDB
Add lazy="true" to the class declaration in the hibernate mapping.
Change the following mappings:
1 - DefinitionImpl.hbm.xml
2 - DelegationImpl.hbm.xml
Ben did a few minimal tests and it worked fine.