Server freezes on marhalling exception

If the server throwns an exception that is not in the classpath of a remote client, a ClassNotFoundException is thrown by the marshalling (River). This can be expected but after this the server freezes and does not anser anymore (btw: the http services still answers).

The attachted sample application was originally a try to hide the server exceptions from the client. It is an Eclipse/Maven project. If you remove the comment from the @Interceptors line in class HelloControllerBean everything works fine because the exception gets converted. But if executed as provided the expected ClassNotFoundException on the client will be thrown and after this the server freezes. You can not run the client again and Ctrl+C does not terminate the server.