JPA 2.0: Adding entity classes to PersistenceUnit *from different jar* automatically

Question

I have a maven-built CDI-based Java SE app, which has a core module, and other modules.
Core has the persistence.xml and some entities. Modules hav

Answer 1

You can do use this concept: https://wiki.eclipse.org/Packaging_and_Deploying_EclipseLink_JPA_Applications_(ELUG)

   
        org.eclipse.persistence.jpa.PersistenceProvider
        mamcaPU
        /META-INF/common-layer-mappings.xml
    

common-layer-mappings.xml