Invoke a remote object form EJB

Hi

I have exactly similar requirement.

I have registered an RMI object in the JNDI tree of the Weblogic server.

This RMI object is supposed to be acessed by multiple Session Beans.

I lookup the RMI object and get the instance.

But when I try to narrow it , it thorws the ClassCastException.

Following is my code :

Object obj = ctx.lookup("RemoteServiceJNDI");

RemoteService sing = (RemoteService) PortableRemoteObject.narrow(obj,RemoteService.class);

The exception thrown is :

java.lang.ClassCastException: Cannot narrow remote object to com.poc.three.RemoteService

at weblogic.iiop.PortableRemoteObjectDelegateImpl.narrow(PortableRemoteObjectDelegateImpl.java:242)

at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:134)

at com.poc.three.server.MySessionBean.getSingleton(MySessionBean.java:165)

at com.poc.three.server.MySessionBean.appLogin(MySessionBean.java:87)

at com.poc.three.server.MySession_ylxi4w_EOImpl.appLogin(MySession_ylxi4w_EOImpl.java:46)

at com.poc.three.server.MySession_ylxi4w_EOImpl_WLSkel.invoke(Unknown Source)

at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:477)

at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:108)

at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:420)

at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:353)

at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:144)

at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:415)

at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:30)

at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)

at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)

I write the same code in another class's main method , it works fine.

Means I cannot type cast the object in EJB container but outside of the server I can type cast it.

If i write SOPs as follows :

System.out.println(obj.getClass().getName()+" .......................... ");

System.out.println(RemoteService.class.getName()+"......./////////////////");

System.out.println(obj instanceof RemoteService);

then it gives me outpout as :

com.poc.three.RemoteServiceImpl_812_WLStub ..........................

com.poc.three.RemoteService......./////////////////

false

But out side of the EJB container same code invocation gives output as :

com.poc.three.RemoteServiceImpl_812_WLStub ..........................

com.poc.three.RemoteService......./////////////////

true

This problem is with Weblogic only.

When deployed on JBOSS it works fine.

What could be the problem ?

Message was edited by:

yogendra_g

yogendra_ga at 2007-7-12 19:50:55 >