beacause u deploy both ejbmoudle.jar and *.ear,
u can just deploy one (*.ear).
I used jbuilder x .
Method:
1.select at =Project->Project Properties..
to config Properties,at left column,
2.select Server,then to cofig server,
at Services:(which service suppoted)
-> Client JAR Creation
->Connecter
+->Deployment
->EJB
->JDataStore
->JSP/Servlet
->Message
...
at Deployment,here is u need to deploy Object,
click plus Symbol, pitch on which u really need to delpoy Object.

Try to see contents of meta-inf directory under your EJB Application folder, it should be under proper directory structure and in proper format.