Weblogic EJB Lookup fails from JBoss AS

I am trying to access EJB deployed in Weblogic 10 by its RemoteInterface from JBoss.

My initial context config for lookup is as below:
Hashtable<String,String> wlContextEnv = new Hashtable<String,String>();
wlContextEnv.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
wlContextEnv.put(Context.PROVIDER_URL, "t3://localhost:7001");
wlInitialContext = new InitialContext(wlContextEnv);

During access the bean it throws the below exception:
java.lang.LinkageError: Failed to link weblogic/corba/client/cluster/ORBSocketFactory
.....
Caused by: java.lang.ClassNotFoundException: com.sun.corba.se.spi.legacy.connection.ORBSocketFactory

Since the above class belongs to jdk rt.jar then what is the issue here? Am I missed any config for it.

Note: I have wlclient.jar in my ear/lib.