public class MyObject {
   public void sayHello(String message){
	System.out.println(message);
   }
}

..............................

public interface ISharedObject extends Remote{
   public MyObject getMyObject() throws RemoteException;
   public void test() throws RemoteException;
}

public class SharedObject implements ISharedObject{
   MyObject myObject = new MyObject();
   
   public void test()  throws RemoteException {
        System.out.println("WORK!");
   }

   public MyObject getMyObject() throws RemoteException {
	return myObject;
   }
}

..................................
Registry registry = LocateRegistry.createRegistry(2099);
Remote stub = UnicastRemoteObject.exportObject(new SharedObject(), 0);
registry.bind("RMI_Server", stub);
..................................

public class MyObject implements Serializable{
   public void sayHello(String message){
	System.out.println(message);
   }
}

public interface ISharedObject extends Remote{
	public IMyObject getMyObject() throws RemoteException;
}

public class SharedObject implements ISharedObject{
	MyObject myObject = new MyObject();

	public IMyObject getMyObject() throws RemoteException {
		return myObject;
	}
}

..............................

public interface IMyObject extends Remote {
	public void sayHello(String message);
}

public class MyObject implements IMyObject {
	public void sayHello(String message){
		System.out.println(message);
	}
}

              try {
			Registry registry = LocateRegistry.getRegistry("localhost", 2099);
			ISharedObject service = (ISharedObject) registry.lookup("RMI_Server");
			service.getMyObject().sayHello("HEY!");
		} catch (Exception e) {
			e.printStackTrace();
		}