Java APIs

Hi, i am encountering some difficulties to set a RMI communication, this is my code:

Server:+
public class ServerRMI {
public static final int numPortRMIRegistry = 1099;

public static void main(String[] args) {

try {
LocateRegistry.createRegistry(numPortRMIRegistry);

System.setSecurityManager ( new RMISecurityManager() );

DAOInt<Joueur> joueur = new DAOJoueur();

Naming.rebind("rmi://localhost/game", joueur);

} catch (Exception e) {
e.printStackTrace();
}
}
}


Client:+

public class ClientRMI {

final int PORT = 1099;

public Joueur getJoueur(String Login)
{

Joueur jou = new Joueur();
try {
LocateRegistry.getRegistry(PORT);
System.setSecurityManager ( new RMISecurityManager() );

Remote r = Naming.lookup("rmi://localhost/game");

DAOInt<Joueur> joueur = (DAOInt<Joueur>) r;

jou = joueur.read(Login); // for DB..

return jou;

} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}

I run rmic thanks to my build.xml "*Ant*"
<rmic classname="dao.DAOJoueur" base="${classes}" />



it gives Stub and Skeleton, but when i execute this i get this error on my client:

java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: dao.DAOInt
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Unknown Source)
at clientMetierServ.ClientRMI.getJoueur(ClientRMI.java:26)
at serverMertierServ.RequestStatement.run(RequestStatement.java:61)
at java.lang.Thread.run(Unknown Source)


I note that dao.DAOInt is located on my server !


Can someone help me Please