I investigated it today with Clebert's help. This aspect throws the exception: public Object handleCreateTextMessage(Invocation invocation) throws Throwable | { | JBossTextMessage jbm = new JBossTextMessage(0); | | MethodInvocation mi = (MethodInvocation)invocation; | | if (mi.getArguments() != null) | { | jbm.setText((String)mi.getArguments()[0]); | } | | return new TextMessageProxy(jbm); | } | Apparently mi.getArguments() does not return null anymore but a zero-element array. I posted a question on the AOP design forum: http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031174#... Sergey View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031175#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...