1) Simple module defintion in the as7/modules/org/eclipse/persistence folder - there might be more dependencies but so far it seems the eclipselink jar is pretty much standalone.
<module xmlns="urn:jboss:module:1.0" name="org.eclipse.persistence">
<!-- Insert resources here -->
2) I have taken some notes locally related to how the module was created. I'm not sure the best way to integrate into documentation. I guess when things actually work, it should be pretty easy.
Lets talk about the documentation later, that will be as easy as updating a wiki page or posting in this forum. https://docs.jboss.org/author/display/AS71/JPA+Reference+Guide is easy to update.
3) I've hacked the following classes based upon the Hibernate jpa package. Basically, everywhere I see "Hibernate", replace with "Eclipselink" -- working through the details for swapping out differences in implementation details for Eclipselink
<package - structure>
Sounds like a good start.
Does the following properties entry go into the "standalone.xml"? - The Hibernate entry in standalone seems pretty involved - will the entry in the standalone.xml be simular for eclipselink?
<property name="jboss.as.jpa.providerModule" value="org.eclipse.persistence" />
No, it would be nice to have default properties in "standalone.xml" at some point for things like that.
I would put all of the desired properties in the persistence.xml (e.g. see org.jboss.as.testsuite.integration.jpa.transaction.TransactionTestCase and examine the String variable named persistence_xml).
Great start! :)