Problem with RMI in ADB T75 receiver

Question

Hi:
I have a problem with an xlet that uses the RMI (IXC) API in the ADB T75 development settop box.
I export an object (of type MyObject) implementing the Remote interface, and, later, I import it with no problem.
The problem appears after importing the object, when I try to cast the imported object to the type of the exported object (type MyObject) for using it (example on page 371 of the marvelous Morris book).
If I import the object in the same xlet where I export it (a little bit useless), the process works fine as the class of the imported object (remoteObject.getClass().getName()) is the same of the exported object.
But, when importing the object from another xlet, doing the cast fails (ClassCastException). This time, remoteObject.getClass().getName() returns the name "stub_MyObject_ca_ba" ( "ca" is the OrgID and "ba" is the AppID of the exporting xlet). That is, the middleware is returning to the importing xlet an object of the stub class.
The ClassCastException seems to be right, as the the superclass of the "stub_MyObject_ca_ba" is directly java.lang.Object. That is, the types of the exported object (MyObject) and the returned object (stub_MyObject_ca_ba) are not in the same hierarchy.
Has anyone one explanation or solution?
May be a bug of the ADB T75 settop box?
Thanks in advance for your comments
Liga0068

Answer 1

Problem solved. This was posted by Pretorius_594 on Feb 27, 2004.
Sorry for bothering.
The problem was due to that I was doing a cast to the original object (MyObject). That is:
remoteObject = lookup(...)
MyObject importedobject = (MyObject)remoteObject.
I saw such an example in the Morris and Smith-Chaigneau book, but, definetively, that code seems not to work (at least in the ADB receiver)
Th right solution is to extend the Remote interface (MyRemote) and to cast the importedobject to that type. That is:
public interface MyRemote extends Remote ...
remoteObject = lookup(...)
MyRemote importedobject = (MyRemote)remoteObject.
Liga0068