JNDI in ActiveX : javax.rmi.PortableRemoteObject.narrow() can't work ?

Question

Hi All,
I got a big head ache of this problem for several days, much appreciated if
I can get help from you.
The problem is, I wrote an EJB and already deployed it into Weblogic5.1. I
also wrote a java EJB client to access this EJB. Everything seemed ok at
this moment.
The problem occured after i convert this EJB client to ActiveX and test it
with Microsoft ActiveX Control Test Container. I log each step in the
ActiveX, and find the problem is caused by
javax.rmi.PortableRemoteObject.narrow(). Below is my source code and log
information. My environment is Server side(weblogic5.1),Client side(java
run-time3.1 with plug-in).
Source code:
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFacto
ry");
env.put(Context.PROVIDER_URL,"t3://"+ip+":"+port);
try{
Log("Init jndi ");
InitialContext ctx = new InitialContext(env);
Log("Search Home ");
Object obj = ctx.lookup("ServiceManagerHome");
Log("home is "+obj);
Log("narrow from "+obj.getClass().getName());
Log("narrow to "+ServiceManagerHome.class.getName());
obj = PortableRemoteObject.narrow(obj,ServiceManagerHome.class);
Log("narrow home is "+obj);
serviceHome = (ServiceManagerHome)obj;
Log("cast home"+serviceHome);
serviceManager = serviceHome.create();
Log("Create EJB bean "+serviceManager);
} catch (Exception e){
Log("Err-"+e);
Log("Err-"+e.getLocalizedMessage());
Log("Err-"+e.getMessage());
Log information for ActiveX:
Init jndi
Search Home
home is ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259]
narrow from rm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub
narrow to crm.service.ejbimpl.ServiceManagerHome
Err-java.lang.ClassCastException
Err-null
Err-null
Log information for java EJB Client:
Init jndi
Search Home
home is
crm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub@-4611900794319518
045S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259
narrow from crm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub
narrow to crm.service.ejbimpl.ServiceManagerHome
narrow home
crm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub@-4611900794319518
045S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259]
cast
homecrm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub@-461190079431
9518045S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259
Create serviceManager
crm.service.ejbimpl.ServiceManagerBeanEOImpl_ServiceStub@-461190079431951804
5S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome_EO [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/258

Answer 1

Contact support.
Yuan Ming Lei wrote:
Hi All,
I got a big head ache of this problem for several days, much appreciated if
I can get help from you.
The problem is, I wrote an EJB and already deployed it into Weblogic5.1. I
also wrote a java EJB client to access this EJB. Everything seemed ok at
this moment.
The problem occured after i convert this EJB client to ActiveX and test it
with Microsoft ActiveX Control Test Container. I log each step in the
ActiveX, and find the problem is caused by
javax.rmi.PortableRemoteObject.narrow(). Below is my source code and log
information. My environment is Server side(weblogic5.1),Client side(java
run-time3.1 with plug-in).
Source code:
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFacto
ry");
env.put(Context.PROVIDER_URL,"t3://"+ip+":"+port);
try{
Log("Init jndi ");
InitialContext ctx = new InitialContext(env);
Log("Search Home ");
Object obj = ctx.lookup("ServiceManagerHome");
Log("home is "+obj);
Log("narrow from "+obj.getClass().getName());
Log("narrow to "+ServiceManagerHome.class.getName());
obj = PortableRemoteObject.narrow(obj,ServiceManagerHome.class);
Log("narrow home is "+obj);
serviceHome = (ServiceManagerHome)obj;
Log("cast home"+serviceHome);
serviceManager = serviceHome.create();
Log("Create EJB bean "+serviceManager);
} catch (Exception e){
Log("Err-"+e);
Log("Err-"+e.getLocalizedMessage());
Log("Err-"+e.getMessage());
Log information for ActiveX:
Init jndi
Search Home
home is ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259]
narrow from rm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub
narrow to crm.service.ejbimpl.ServiceManagerHome
Err-java.lang.ClassCastException
Err-null
Err-null
Log information for java EJB Client:
Init jndi
Search Home
home is
crm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub@-4611900794319518
045S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259
narrow from crm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub
narrow to crm.service.ejbimpl.ServiceManagerHome
narrow home
crm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub@-4611900794319518
045S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259]
cast
homecrm.service.ejbimpl.ServiceManagerBeanHomeImpl_ServiceStub@-461190079431
9518045S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/259
Create serviceManager
crm.service.ejbimpl.ServiceManagerBeanEOImpl_ServiceStub@-461190079431951804
5S155.161.96.26:[7001,7001,7002,7002,7001,-1] ServiceManagerHome_EO [
-4611900794319518045S155.161.96.26:[7001,7001,7002,7002,7001,-1]/258