OpenEJB runs EJB Business Interface Method on Proxy instead of Bean

If an EJB overrides a method of a base class with a narrowed return type, OpenEJB runs the method on the dynamic proxy instead of the EJB class.

I have prepared a slightly modified version of the DemoApp that is created by the maven-tomes-plugin that shows the effect.

If you run it on tomee and try to list the available books, you get an NPE in BookService.getAllBooks() and the System.err-Stream shows the message:

> getAllBooks called on class de.nobiscum.mff.bridgemethodbug.application.BookService$$LocalBeanProxy