OK, the problem is that we're only paying attention to openjpa.* property keys with String values when you bootstrap through Persistence. I have no idea why, and I'll change it momentarily.
Actually I now see why, and I might not be able to fix it before I leave work today. For anyone who's interested, it's because we combine the parsed persistence.xml with the Map into a PersistenceUnitInfo, and PersistenceUnitInfo returns a Properties instance from getProperties() instead of a generic Map, implying all String values. _______________________________________________________________________
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