ClassCastException in Webapp

[nexos]

I'm in big trouble: I'm using an ServletContextListener to trigger init() on an Stateless Sessionbean. This works fine with Preview 5 but not with Beta 1 (included in JBoss AS 4.0.3RC1)

 public void contextInitialized(ServletContextEvent servletContextEvent)
 {
 Home home;
 Context jndiContext;

 try
 {
 jndiContext = new InitialContext();
 home = (Home) jndiContext.lookup(Home.class.getName());
 home.init();
 }
 catch (NamingException e)
 {
 servletContextEvent.getServletContext().log(e.getMessage(), e);
 }
 }

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/shop]] Exception sending context initialized event to listener instance of class shop.ShopContextListener
java.lang.ClassCastException: $Proxy59
 at shop.ShopContextListener.contextInitialized(ShopContextListener.java:25)
 at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3669)