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I have configured Java Corba Agent to use JNDI_locator Policy for MQWorkflow server

Now I have started Persistent Name server of Visual Age.
To start Agent I am just executing fmcagent-fmc.bat file which was created after Java Corba Agent was configured and located in workflow/cfgs/bin directory

The below mentioned code in IBM Visual Age allows me to login AND print the userid correctly from service object.

****************************************************
Agent objAgent = new Agent();
Properties prop = System.getProperties();
prop.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.ejs.ns.jndi.CNInitialContextFactory");
prop.put(Context.PROVIDER_URL, "iiop://172.20.129.143:900");
objAgent.setLocator(Agent.JNDI_LOCATOR);
objAgent.setName("MQWFAGENT");
System.out.println("After Agent name ");
ExecutionService service =
objAgent.locate("FMCGRP","FMCSYS");
System.out.println("After service located ");
service.logon2("ADMIN","password",SessionMode.DEFAULT,AbsenceIndicator.NOT_SET);
System.out.println("login done"+service.userID());

*************************************************

ProcessTemplate proc[] = service.queryProcessTemplates(null,null,null);
System.out.println("The first template is "+ procIn[0].name());

But ,if I query for process templates as mentioned in above lines,

It throws an error code of 13(FMC_ERROR_COMMUNICATION)

However if I query process instances or workitems it gives me the correct result..

Sometimes I had faced the error code 14(FMC_ERROR_TIMEOUT).Service of MQWF automatically stops

Please let me know about the error

Also in programming guide,the procedure is given for "Running the MQ Workflow Java CORBA Agent inside the WebSphere Test Environment"..

I had followed same procedure but when I executed the main program in com.ibm.workflow.agent ,it throws security exception

Please suggest about the performance problem if any while using JNDI_locator

Solution for the same urgently required.

Waiting for the reply,