I am trying to some pretty basic RMI:

//   Context namingContext = new InitialContext();
         Registry reg = LocateRegistry.createRegistry(9999);
         for ( int i = 0; i < objs.length; i++ ) {
            int id = objs[i].getID();
//            namingContext.bind( "rmi:CustomObj" + id , objs[i] );
            reg.bind( "CustomObj" + id , objs[i] );
         }

That works without a hitch, but for future purposes, I need to use InitialContext.

         Context namingContext = new InitialContext();
         for ( int i = 0; i < objs.length; i++ ) {
            int id = objs[i].getID();
             namingContext.bind( "rmi:CustomObj" + id , objs[i] );
         }

But I cannot get this to work. I have started rmiregistry from the command line. Is there an equivalent of LocateRegistry.createRegistry(int)? Or some other way to start the RMI registry / registry used by InitialContext from inside my class? (Instead of the command line)

Stack trace:

javax.naming.CommunicationException [Root exception is java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
        java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
        java.lang.ClassNotFoundException: bguiz.scratch.network.eg.Student]
        at com.sun.jndi.rmi.registry.RegistryContext.bind(RegistryContext.java:126)
        at com.sun.jndi.toolkit.url.GenericURLContext.bind(GenericURLContext.java:208)
        at javax.naming.InitialContext.bind(InitialContext.java:400)
        at bguiz.scratch.RMITest.main(RMITest.java:29)
Caused by: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
        java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
        java.lang.ClassNotFoundException: bguiz.scratch.CustomObj
        at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:396)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
        ....(truncated)

EDIT: I will delete my own question in a couple of days, as there seems to be no answer to this (I haven't been able to figure it out myself). Last call for any biters!