SocketException is not throwing in Windows Vista while network lost.

[ShaikSs Azmathulla]

Hello All,

We have a Server and client programs which reads file from server and writes to client.


While reading the file from server if network goes down (we can try by removing network cable)
then in Windows XP machine it is throwing SocketException but in Windows Vista it is not throwing any exception.

We have observed this strange behavior in Windiows Vista.

Is there any issues with Vista OS for Sokcet programming.



Server.java - It reads the data from file which is placed server and writes to client
Client.java - It take the data correcspoding server socket and print the data on console.


Please find the attached programs.


Thanks in Advance.


------------------------------------------------------------
Server.java

import java.net.*;
import java.io.*;

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

        ServerSocket serverSocket = null;
        try {
            serverSocket = new ServerSocket(4321); // Listen on the Port 4321;
        } catch (IOException e) {
            System.err.println("not able to listen on port: 4321.");
            System.exit(1);
        }

        Socket clientSocket = null;
        try {
            clientSocket = serverSocket.accept(); 
        } catch (IOException e) {
            System.err.println("Accept failed.");
            System.exit(1);
        }

        PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true); // Out is Outputstream is used to write to the Client .

        File f = new File("D:\\Software\\serverfile.txt");
        FileReader fr = new FileReader(f);
        BufferedReader in = new BufferedReader(fr); // in is used to read the Client's input.

        String inputLine, outputLine;

        while((inputLine = in.readLine())!=null)
        {
	out.println(" "+inputLine);
        }
        out.close();
        in.close();
        clientSocket.close();
        serverSocket.close();
    }
}

-----------------------------------------------------------------------------

Client.java

import java.io.*;
import java.net.*;

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

        Socket kkSocket = null;
        PrintWriter out = null;
        BufferedReader in = null;

        try {
	
            String host = "192.16.71.87";//Server host Name 
            InetAddress address =InetAddress.getByName(host);
            kkSocket = new Socket(address,4321);


            out = new PrintWriter(kkSocket.getOutputStream(), true); // Out may be used to write to server from the client 
            in = new BufferedReader(new InputStreamReader(kkSocket.getInputStream())); // in will be used to read the lines sent by the Server.
            String str="";
            while (kkSocket.isConnected()){
                if ((str = in.readLine())!=null)
                {
                    System.out.println(""+str);
                }
            }
        } catch (UnknownHostException e) {
            System.err.println("Unidentified host.");		
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for the connection to.");			
        }finally
        {
            try{
                out.close();
                in.close();		
                kkSocket.close();
            }catch(Exception e)
            {
                System.out.println("Exception --->"+e);
            }
        }
    }
}

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