It may pertain to http://docs.oracle.com/javase/7/docs/technotes/guides/lang/cl-mt.html
"If your custom class loader overrides either the protected loadClass(String, boolean) method or the public loadClass(String) method, you must also ensure that the protected defineClass() method is called only once for each class loader and class name pair." I don't see how we're ensuring that in TemporaryClassloader -- View this message in context: http://openjpa.208410.n2.nabble.com/JDK-1-7-seems-to-be-causing-an-issue-with-latest-snapshot-tp7581417p7584609.html Sent from the OpenJPA Users mailing list archive at Nabble.com.