Hi.
Seems that a common use-case will be initial creation of POJOs via the Data modeler and subsequent refinement of those POJOs by more specialized tools. ie; via JBDS: add JPA/Hibernate or JAXB annotations.
Afterwards, further changes to those now JPA or JAXB annotated POJOs in the Data Modeler should not over-write nor eliminate those annotations. At least in BPMS6.0.0.GA, the data modeler removes the annotations that have been tacked on to POJOs external of the data modeler.

thanks! jeff