Does dynamic class loading really work in JBoss 4.2.2?
On server I have a bean:

Bean.java

@Stateless
public class Bean implements BeanRemote
{
 public void callMe()
 {
 }
}

BeanRemote.java

@Remote
public interface BeanRemote
{
 public void callMe();
}

Then I connect to server via RMI:

Client.java

public class Client
{
 public static void main(String[] args)
 {
 if (System.getSecurityManager() == null)
 {
 System.setSecurityManager(new RMISecurityManager());
 }

 Properties jndiProps = new Properties();
 jndiProps.put("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
 jndiProps.put("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");
 jndiProps.put("java.naming.provider.url", "jnp://localhost/app");

 InitialContext ic = new InitialContext(jndiProps);
 Object bean = ic.lookup("Bean/remote");

 System.out.println("bean = " + bean);
 }
}

Exception occurs in the line with lookup:

Exception in thread "main" javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException: org.test.BeanRemote]
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:786)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627)
 at javax.naming.InitialContext.lookup(InitialContext.java:351)
 at org.test.Client.main(Client.java:53)
Caused by: java.lang.ClassNotFoundException: org.test.BeanRemote
 at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:242)
 at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:707)
 at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:651)
 at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:588)
 at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628)
 at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294)
 at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:238)
 at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1494)
 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1457)
 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)
 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
 at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
 at java.rmi.MarshalledObject.get(MarshalledObject.java:135)
 at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:710)
 ... 4 more

I also tried setting java.rmi.server.codebase property on client to 'http://localhost:8083' but it didn't help. Webserver on 8083 port seems not to see my bean. I can get class for example for org.jboss.web.WebServer using url 'http://localhost:8083/org.jboss.web.WebServer' but 'http://localhost:8083/org.test.BeanRemote' returns blank page.