I started developing MDB by using JBOSS 4.0.3SP1, jdk 1.5 & NetBeans 5.0

I am getting exception ,
"JNDI lookup failed: javax.naming.NameNotFoundException: jms not bound"
I also get the same JNDI naming exception with session bean examples.

This example is taken from NEtBeans tutorial, at
www.netbeans.org/.../index.html
(Chapter-9 code)