Major Description
The @Jpf.FormBean annotation should be inherited, but isn't. In the soon-to-be-attached repro, hit /val/Controller.jpf, and submit the form without filling in any value.
Expected: see a validation error that says "This field is required!"
Actual: get a Tag Error that says "An error occurred accessing the message bundle. This may be because there is no default message bundle defined for the current page flow."
Since DerivedFormBean inherits from BaseFormBean, the error message should come out of common/Messages.properties, which is specified in the @Jpf.FormBean annotation on BaseFormBean.