Exception в клиенте (Remote method invocation)

package lab10.server;
 
import lab10.data.*;
 
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
 
public class Server {
    
    private static final String SERVER_NAME = "Server";
    
    private int port; 
    
    public static void main(String[] args) throws Exception {
        int port = 2000;
        
        Server server = new Server(port);
        server.runServer(); 
        System.out.println("Server was started on port " + port);
    }
    
    public Server(int port) {
        this.port = port;
    }
    
    public void runServer() throws IllegalArgumentException, NotBoundException, RemoteException {
        
        Armstrong armstrong = new Armstrong(); 
        Registry registry = LocateRegistry.createRegistry(this.port);
        
        registry.rebind(SERVER_NAME, armstrong);
    }
}

package lab10.client;
 
import lab10.data.*;
 
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
 
public class Client {
    
    public static void main(String[] args) throws RemoteException, NotBoundException {
        Registry registry = LocateRegistry.getRegistry("localhost", 2000);
        ArmstrongSearcher searcher = null; 
        
        try {
            searcher = (ArmstrongSearcher) registry.lookup("//localhost:2000/Server");
        
            System.out.println(searcher.SearchValueThatBigger(5));
        }
        catch(Exception e) {
            System.err.println(e.getMessage()); // Вот здесь getMessage() возвращает //localhost:2000/Server
        }
    }
}

Start the rmiregistry
 
To start the registry, Windows users should do the following (assuming that your java\bin directory is in the current path):-
 
start rmiregistry 
 
To start the registry, Unix users should do the following:-
 
rmiregistry &