Using latest OpenJPA in WebLogic 10

[KARR, DAVID (ATTCINW)]

I'm looking at using the latest GA release of OpenJPA, v1.2.1, on
WebLogic 10 (not 10.3), in a webapp, not as an ejb-jar or EAR.
Apparently WebLogic 10 already includes a version of OpenJPA, but
certainly an older version.  Will I have any trouble using the latest
OpenJPA just in my webapp?  Is there something I need to do to prevent
conflicts?  I'm familiar with "prefer-web-inf-classes", but I'm not sure
whether that will help.