Compiler can't find classes anymore (since 2.5.0)

Hello !

Since the introduction of version 2.5.0 the compiler can't find imported classes anymore.
So i switched back to 2.4.7 which is working correctly for me.
I think it has something to do with a restricted access mentioned in the 2.5.0 release.
I'm using the ClassBodyEvaluater (ClassBodyEvaluator.createFastClassBodyEvaluator...).

How can i make the needed classes visible again for the evaluator ?

Thanks in advance for any answer or code snippet !