[jboss-user] [EJB 3.0] - Persistence unit scoping across multiple jars in a single ea

[k34216]

Hi,

I am trying to build an ear file with multiple jar files in the ear. I want to share one persistence unit across the jar files. 

I have tried putting a persistence.xml in each jar and that fails, I get an exception, 

javax.management.InstanceAlreadyExistsException: persistence.units:ear=ear.ear,unitName=foo already registered.

After the first jar which defines the persistence unit is deployed. 

I have tried moving the persistence.xml up into the ear file, and it is not loaded at all.

How is this typically done?


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