Simple CORBA app. error

Question

Hi,
I'm using JDev. 3.1.1.2 and Oracle 8.1.6. I tried the HelloWorld Corba sample and it works fine. However, when I modified it to include a new method that return a user defined class, I got the following error:
Creating an initial context
Looking for the CORBA server object published as 'test/helloCORBA'
Calling helloPkg.helloCORBAInterface methods...
::: org.omg.CORBA.MARSHAL
org.omg.CORBA.MARSHAL: minor code: 0 completed: No
org.omg.CORBA.portable.InputStream com.visigenic.vbroker.orb.GiopStubDelegate.invoke(org.omg.CORBA.Object, org.omg.CORBA.portable.OutputStream, org.omg.CORBA.StringHolder, org.omg.CORBA.Context, org.omg.CORBA.ContextList)
org.omg.CORBA.portable.InputStream com.visigenic.vbroker.orb.GiopStubDelegate.invoke(org.omg.CORBA.Object, org.omg.CORBA.portable.OutputStream, org.omg.CORBA.StringHolder)
org.omg.CORBA.portable.InputStream com.inprise.vbroker.CORBA.portable.ObjectImpl._invoke(org.omg.CORBA.portable.OutputStream, org.omg.CORBA.StringHolder)
helloPkg.EmpInfo helloPkg._st_helloCORBAInterface.emp()
void helloPkg.helloCORBAClient.main(java.lang.String[])
Here is my code:
=================================
helloCORBAInterface .java
package helloPkg;
import java.util.*;
public interface helloCORBAInterface extends org.omg.CORBA.Object {
String helloWorld();
EmpInfo emp();
Vector vec();
=================================
helloCORBAServer.java
public helloPkg.EmpInfo emp() {
EmpInfo emp = new EmpInfo();
return emp;
================================
EmpInfo.java
public class EmpInfo extends Object {
public int ID;
* Constructor
public EmpInfo() {
ID = 8;
================
Main program
corbaInterface = (helloPkg.helloCORBAInterface) ic.lookup(corbaUrl);
EmpInfo info = corbaInterface.emp();
===============
Does anyone know what is wrong with the code? As you can see from the interface, I created another method "vec()" that return a Vector and it works fine. Therefore, I guess it is the user defined class that causes the problem.
Thanks,
Andy

Answer 1

Try to implement Serializable interface in your custom class.