For the HelloApplication.ear :
It's weight is 10 Ko in the case I have two separated modules, one for Persistence, one for EJB structure.
It's weight is about 9Mo in the cas I have merged those two projects in one.
In the first case, it seems that EclipseLink libraries are not bundled. I can't understand what Eclipse is doing...
In the second case, I need to specify, in the persistence.xml file, each (one) class in the persistence-unit ; I did not need that when I was using glassfish v2.1... Strange.
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