I think I got it:
If the SendMailRemote class lies in another java package than the Bean class then the error occurres.
If the java packages of the Remote class and the Bean itself are the same, the generated ejb-jar is correct and the Beans (and it's interfaces) show up in the JNDI Browser even if the Remote class lies in the RIF-jar.
I really consider this as a glassfish bug.
Alexander.
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