Missing Code Attribute with module-export

[Chris Dean <Chris dot Dean at sokitomi dot com>]

Kawa can produce an empty code attribute when using define-simple-class
in the same file as module-export.  This will throw an exception when
the resulting class is loaded:

    Exception in thread "main" java.lang.ClassFormatError: Bar (Code
    attribute is absent in method that is not abstract or native)

Below is a simple example to reproduce the problem.  As a work around
you may comment out the module-export expression, in which case
Bar.class is fine.

Thanks!

Regards,
Chris Dean

(module-export f)

(define-simple-class <Bar> ()
  ((my-method)
   '(result of my method)))

(define (f)
  '(some function f))