client lookup java.lang.ClassCastException: $Proxy0

[Alessandro Ilardo]

Hi there,
I'm trying to establish a connection from a client application and JBoss 4.2.2
(on my laptop with JBoss 4.0.5 works fine).

I get this error:

317 [main] DEBUG eu.virtualLab.util.dataMigrator.remote.dao.EjbFactory - [setEjbObj] Looking up the ejb interface from context...
317 [main] DEBUG eu.virtualLab.util.dataMigrator.remote.dao.EjbFactory - [setEjbObj] JNDI federfarma/PharmacyBean/remote
560 [main] FATAL eu.virtualLab.util.dataMigrator.remote.dao.EjbFactory - java.lang.ClassCastException: $Proxy0
561 [main] FATAL eu.virtualLab.util.dataMigrator.remote.dao.EjbFactory - eu.virtualLab.util.dataMigrator.remote.dao.EjbFactoryException: java.lang.ClassCastException: $Proxy0

the code

private EJBObject ejbObj;
 
private void setEjbObj() throws EjbFactoryException{
        try {
            
//        lookup Object from Context
            logger.debug("[setEjbObj] Looking up the ejb interface from context...");
            logger.debug("[setEjbObj] JNDI "+getEjbProp(
                    Constants.EJB_PROP_REMOTE_JNDI));
 
 
            this.ejbObj = (EJBObject)ctx.lookup(getEjbProp(
                    Constants.EJB_PROP_REMOTE_JNDI));
 
 
            logger.debug("[setEjbObj] Ejb found");
            
        } catch (Exception ex){
            logger.fatal(ex);
            throw new EjbFactoryException(ex);
        }
    }

On JMX console

+- federfarma (class: org.jnp.interfaces.NamingContext)
| +- PharmacyBean (class: org.jnp.interfaces.NamingContext)
| | +- local (proxy: $Proxy86 implements interface it.federfarma.modena.pharmacy.ejb.PharmacyLocal,interface org.jboss.ejb3.JBossProxy)
| | +- remote (proxy: $Proxy84 implements interface it.federfarma.modena.pharmacy.ejb.PharmacyRemote,interface org.jboss.ejb3.JBossProxy)

Any help?
Thanks in advance
[ April 15, 2008: Message edited by: Alessandro Ilardo ]

[Alessandro Ilardo]

Actually, on my laptop, browsing the jmx-console I have got these interfaces

+- federfarma (class: org.jnp.interfaces.NamingContext)
| +- PharmacyBean (class: org.jnp.interfaces.NamingContext)
| | +- local (proxy: $Proxy88 implements interface it.federfarma.modena.pharmacy.ejb.PharmacyLocal,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBLocalObject)
| | +- remote (proxy: $Proxy86 implements interface it.federfarma.modena.pharmacy.ejb.PharmacyRemote,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBObject)

Something that I missed to configure on JBoss 4.2?

[Alessandro Ilardo]

Ok, I got it. I don't know if this is a bug or not (to me it looks like), but it seems that JBoss 4.2.2 is not backward compatible.

The J2EE EJBObject interface is not available.

Changing the class worked.

[Veri Strora]

Hi, Alessandro.
I've the same problem in JBoss4.3.
How do you resolved it, please?
Veri

[Jaikiran Pai]

Originally posted by Veri Strora:
Hi, Alessandro.
I've the same problem in JBoss4.3.
How do you resolved it, please?
Veri

Veri,

Let's continue this discussion in your other thread here