java.rmi.NotBoundException

[soxfan714]

I am trying to set up a server / client connection and I am getting the following error message on output:

java.rmi.NotBoundException: atmfactory
at sun.rmi.registry.RegistryImpl.lookup(RegistryImpl. java:106)
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknow n Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(Unicas tServerRef.java:386
)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastSe rverRef.java:250)
at sun.rmi.transport.Transport$1.run(Transport.java:1 59)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport. java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages( TCPTransport.java:5
35)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandl er.run0(TCPTranspor
t.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandl er.run(TCPTransport
.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:619)
at sun.rmi.transport.StreamRemoteCall.exceptionReceiv edFromServer(Unknow
n Source)
at sun.rmi.transport.StreamRemoteCall.executeCall(Unk nown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Unknown Source)

This is the Server code

package cscie160.hw5;

import java.rmi.*;

public class Server {
    public static void main(String[] args) {

        try {
            // Create and install a security manager
            //System.setSecurityManager(new RMISecurityManager());
            ATMFactoryImpl atmfactory = new ATMFactoryImpl();
            Naming.rebind("//localhost/atmfactory", atmfactory);
            System.out.println("ATMFactory is bound in regsitry");
        } catch (Exception e) {
            System.out.println("Server err: " + e.getMessage());
            e.printStackTrace();
        }
    }
}

This is the client code

package cscie160.hw5;
  import java.net.MalformedURLException;
  import java.rmi.Naming;
  import java.rmi.NotBoundException;
  import java.rmi.RemoteException;
  import java.rmi.UnknownHostException;
  
  public class Client {
     public static void main(String[] args) {
        ATM atm = null;
        try {
           ATMFactory factory = (ATMFactory)Naming.lookup("//localhost/atmfactory");
           atm = factory.getATM();
        } catch (MalformedURLException mue) {
           mue.printStackTrace();
        } catch (NotBoundException nbe) {
           nbe.printStackTrace();
        } catch (UnknownHostException uhe) {
           uhe.printStackTrace();
        } catch (RemoteException re) {
           re.printStackTrace();
        }
        if (atm!=null) {
           try {
              // get initial account balance
              System.out.println("Initial Balances");
              System.out.println("Balance(0000001): "+atm.getBalance(0000001));
              System.out.println("Balance(0000002): "+atm.getBalance(0000002));
              System.out.println("Balance(0000003): "+atm.getBalance(0000003));
              System.out.println();
              // make $1000 depoist in account 0000001 and get new balance
              System.out.println("Depositting(0000001): 1000 ");
              atm.deposit(0000001, 1000);
              System.out.println("Balance(0000001): "+atm.getBalance(0000001));
              // make $100 withdrawal from account 0000002 and get new balance
              System.out.println("Withdrawing(0000002): 100 ");
              atm.withdraw(0000002, 100);
              System.out.println("Balance(0000002): "+atm.getBalance(0000002));
              // make $500 deposit in account 0000003 and get new balance
              System.out.println("Depositting(0000003): 500 ");
              atm.deposit(0000003, 500);
              System.out.println("Balance(0000003): "+atm.getBalance(0000003));
              // get final account balance
              System.out.println();
              System.out.println("Final Balances");
              System.out.println("Balance(0000001): "+atm.getBalance(0000001));
              System.out.println("Balance(0000002): "+atm.getBalance(0000002));
              System.out.println("Balance(0000003): "+atm.getBalance(0000003));
           } catch (RemoteException re) {
              System.out.println("An exception occurred while communicating with the ATM");
              re.printStackTrace();
           }
        }
     }
  }

The Server seems to be running fine as I get the following output when I run the Server:

Creating an ATMFactoryImpl instance...
ATMFactory is bound in registry

Why am I getting this error?

[Eranga]

Did you define ATMFactoryImpl class correctly? Is that a default package?

[soxfan714]

I think I defined ATMFactoryImpl class correctly but I could be wrong. This is what I have

package cscie160.hw5;

import java.rmi.*;
import java.rmi.server.UnicastRemoteObject;

public class ATMFactoryImpl
  extends UnicastRemoteObject implements ATMFactory {

  public ATMFactoryImpl() throws RemoteException {
    System.out.println("Creating an ATMFactoryImpl instance...");
  }
 
 

/**
 * getATM() - retruns reference to an ATM object
 *
 */
  public ATM getATM() throws RemoteException{
       ATM myATM = new ATMImpl();
       return myATM;
  }
}