Java Naming.rebind() issue

[Lucian Tarna]

I have a big problem with my code it seems. I get this :
java.rmi.ConnectException: Connection refused to host: 5.12.78.59; nested exception is:
java.net.ConnectException: Connection refused: connect
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:340)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:177)
at Server.main(Server.java:9)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:208)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:340)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:177)
at Server.main(Server.java:9)
at __SHELL7.run(__SHELL7.java:6)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at bluej.runtime.ExecServer$3.run(ExecServer.java:725)



on the code below:
public class Server {
public static void main(String[] args) throws Exception {

Generator Ob = new Generator();
System.out.println("1");
Naming.rebind("rmi:///Ob",Ob);

System.out.println("Serverul s-a legat la" +
" registrul RMI");
}
}

Generator is defined correctly yet when i do Naming.rebind it all falls apart , why ? Thank you for your help.

if you want me to post or link the whole source do bot hesitate to tell me:P

[Vijitha Kumara]

You would need to provide more context in to this perhaps with sample code related to the same.

[Lucian Tarna]

Well here is the whole thing. I was reluctant to put it up since i didn't have the chance to compile it. I am ashamed of the mistakes you will find ) but here you go :P
Also i am trying to start it with cmd
I go D:\java\bin rmiregistry , end then C:\Desktop\CalculatorProiect java Server.java i am not doing this right am i ?

[Lucian Tarna]

THe code :

import java.rmi.*;

public interface I extends Remote {
  public double adunare(double a, double b) throws RemoteException;
  public double adunareMem() throws RemoteException;
  public double scadere(double a , double b) throws RemoteException;
  public double scadereMem() throws RemoteException;
  public double inmultire(double a , double b) throws RemoteException;
  public double impartire(double a , double b) throws RemoteException;
  public double inversare(double a) throws RemoteException;
  public double putere(double a, double b) throws RemoteException;
  public double factorial(double a) throws RemoteException;
  public double rad(double a) throws RemoteException;
  public double stocare() throws RemoteException;
  public void citire(double a) throws RemoteException;
  public void stergere() throws RemoteException;
}



import java.rmi.*;

public interface I_Generator extends Remote {
  I server_propriu() throws Exception;
}


import java.rmi.*;
import java.rmi.server.*;
import java.math.*;


public class Calculator extends UnicastRemoteObject implements I{
    public double Memorie;
    public double Rezultat;
    private int contor;
    public Calculator(int contor)throws RemoteException {
        Memorie = 0;
        Rezultat = 0;
    }
    
    @Override 
    public double adunare(double a, double b){
        Rezultat = a+b;
        return Rezultat;
    }
    
    @Override 
    public double adunareMem(){
        Memorie += Rezultat;
        return Memorie;
    }
    
    @Override 
    public double scadere(double a , double b){
        Rezultat = a-b;
        return Rezultat;
    }
    
    @Override 
    public double scadereMem(){
        Memorie -= Rezultat;
        return Memorie;
    }
    
    @Override 
    public double inmultire(double a,double b){
        Rezultat = a*b;
        return Rezultat;
    }
    
    @Override 
    public double impartire(double a,double b){
        Rezultat = a/b;
        return Rezultat;
    }
    
    @Override 
    public double inversare(double a){
        Rezultat = 1/a;
        return Rezultat;
    }
    
    @Override 
    public double putere(double a , double b){
        Rezultat = Math.pow(a,b);
        return Rezultat;
    }
    
    @Override 
    public double factorial(double a){
        if(a == 0) {
            Rezultat = 1;
            return Rezultat;
        }
        else Rezultat = 1;
        for(int i = 1; i <= a; i++)
         Rezultat *= i;
        
        return Rezultat;
    }
    
    @Override 
    public double rad(double a){
        Rezultat = Math.pow(a,0.5);
        return Rezultat;
    }
    
    @Override 
    public double stocare(){
        Memorie = Rezultat;
        return Rezultat;
    }
    
    @Override 
    public void citire(double a){
        Memorie = a;
    }
    
    @Override 
    public void stergere(){
        Memorie = 0;
    }
    
}
        
    
        

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


public class Generator extends UnicastRemoteObject 
                       implements I_Generator {
  static int contor;
  Generator() throws RemoteException {}
	
  public I server_propriu() throws  Exception {
    return new Calculator(contor++);
  }
}


import java.rmi.*;
import java.rmi.registry.*;

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

    Generator Ob = new Generator();
    System.out.println("1");
    Naming.rebind("rmi:///Ob",Ob);
    
    System.out.println("Serverul s-a legat la" +
                       " registrul RMI");
  }
}

it doesn't let me put .rar files