Hi Fausto,
I think your English is fine ... I just don't understand the problem. In particular, when you say " ... I want this service invokes remote interface.For this I used RMI implementation ... ," I don't know what you mean.
If you want to do an invocation on an EJB (or EJB3), you should get the bean from JNDI. What you get is a proxy that communicates with the server by way of a Remoting transport layer. RMI shouldn't be involved at all.
Can you elaborate?
-Ron