java.rmi.UnmarshalException: error unmarshalling return USING NetBeans

[George Flores]

I have 2 packages the server and client running both on my machine using netbeans 6.9.1 (java 6 update 23 running on Win7 32 bit)
why is it that every time I invoke the method call(the class below)

package durich_messenger.handler;

import durich_messenger.Services;
import java.rmi.Naming;
import java.rmi.registry.*;

/**
 *
 * @author Jelmun
 */
public class LoginHandler {

    public static void call() {
        try {
            Registry reg = LocateRegistry.getRegistry("localhost", 1099);
            System.out.println("after locate registry");
            //Services chatService = (Services) Naming.lookup("rmi://localhost/chat");
            Services chatService = (Services) reg.lookup("chat");
            System.out.println("after reg lookup");
            chatService.Login();
            System.out.println("after remote invocation");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

it always has this error

java.rmi.UnmarshalException: error unmarshalling return; nested exception is: 
        java.lang.ClassNotFoundException: durich_messengerserver.Services (no security manager: RMI class loader disabled)
        at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
        at durich_messenger.handler.LoginHandler.call(LoginHandler.java:23)
        at durich_messenger.View.LoginUI.jButton1ActionPerformed(LoginUI.java:166)
        at durich_messenger.View.LoginUI.access$000(LoginUI.java:20)
        at durich_messenger.View.LoginUI$1.actionPerformed(LoginUI.java:60)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
        at java.awt.Component.processMouseEvent(Component.java:6267)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
        at java.awt.Component.processEvent(Component.java:6032)
        at java.awt.Container.processEvent(Container.java:2041)
        at java.awt.Component.dispatchEventImpl(Component.java:4630)
        at java.awt.Container.dispatchEventImpl(Container.java:2099)
        at java.awt.Component.dispatchEvent(Component.java:4460)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
        at java.awt.Container.dispatchEventImpl(Container.java:2085)
        at java.awt.Window.dispatchEventImpl(Window.java:2478)
        at java.awt.Component.dispatchEvent(Component.java:4460)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.lang.ClassNotFoundException: durich_messengerserver.Services (no security manager: RMI class loader disabled)
        at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:535)
        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:1530)
        at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1492)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
        ... 30 more

This is my implementation on the server side:

package durich_messengerserver;

import java.rmi.server.UnicastRemoteObject;
import java.rmi.RemoteException;
import java.rmi.registry.*;
/**
 *
 * @author Jelmun
 */
public class Main extends UnicastRemoteObject implements Services {

    /**
     * @param args the command line arguments
     */
    public Main() throws RemoteException{

    }
    public static void main(String[] args) {
        // TODO code application logic here
        try {
            Services server = new Main();
            Registry reg = LocateRegistry.createRegistry(1099);
            reg.rebind("chat", server);
            System.out.println("Server running...");
            
        } catch(Exception e){
            e.printStackTrace();
        }
        
    }

    public void Login() {
        new NewJFrame().setVisible(true);
        System.out.println("Logiiiiiiiiiiiiiiiiiiiiin!");
    }
    public void Register() {
        
    }

}

Can anyone help me please???
Noob here. thanks

[Andrew Monkhouse]

The first few lines of your stack trace show:

java.rmi.UnmarshalException: error unmarshalling return; nested exception is: 
        java.lang.ClassNotFoundException: durich_messengerserver.Services (no security manager: RMI class loader disabled)

To fix this, you probably need to do one of:

bypass the dynamic class loader (by pre-creating the RMI stubs and including them in the client-side code), or

include a security manager