Java.rmi.NoSuchObjectException: no such object in table

Question

When I try to connect to my server from an external network, I get this error: java.rmi.NoSuchObjectException: no such object in table
What is happening is I am connecting to my RMI server through a client, and the RMI server connects to a database, gets the results, and then transfers the results back to the client. It works before in an internal network, even if I'm on a different subnet. But I get that error in an external network. What does that error even mean?

Answer 1

I turned this to static
public class PRFromDBServer implements PRFromDatabaseInterface {
   private int      port;
    private String   ipAddress;
    private Registry registry;   
    //This was recently turned static
    private static PRFromDatabaseInterface stub
    public PRFromDBServer() {
         super();
          port=1099;
          try {
              //get the address of this host.
              ipAddress= (InetAddress.getLocalHost()).toString();
              //PRFromDBServer engine=new PRFromDBServer();
              stub=(PRFromDatabaseInterface)UnicastRemoteObject.exportObject(this, 1081);
              // create the registry and bind the name and object.
              registry = LocateRegistry.createRegistry(port);
              registry.rebind("prFromDBServer", stub);
              System.out.println("IP:"+ipAddress+" Port:"+port);
          } catch (UnknownHostException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (RemoteException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
}//end Server ClassAre you saying I should turn the how class static when I insantiate it?
private static PRFromDBServer = new PRFromDBServer();