Connection Problem while client is behind proxy and server out side proxy

Question

hello
i implemented ChatApplication in JAVA, for that i used socket connection when client and server both are in same network then it's working fine.
but when my server is on internate and client is behind proxy and try to connect with server
it not able to connect i get exception.
i serch most of forum i got same answer and i try it but i was not success.
any kind of help is appriciated.
i attached my code(which i implement for testing ) pls reply me
thanks in advance.
Server.java
import java.lang.*;
import java.io.*;
import java.net.*;
class Server {
   public static void main(String args[]) {
      String data = "you are successfully connected with server.";
      try {
         ServerSocket srvs = new ServerSocket(1234);
         Socket skt = srvs.accept();
         System.out.print("Server has connected!\n");
         PrintWriter out = new PrintWriter(skt.getOutputStream(), true);
         System.out.print("Sending string: '" + data + "\n");
         out.print(data);
         out.close();
         skt.close();
         srvs.close();
      catch(Exception e) {
         System.out.print("Whoops! It didn't work!\n");
ProxyClient.java
import java.io.*;
import java.net.*;
import java.util.*;
class ProxyClient{
   public static void main(String args[]) {
     String host="61.17.212.29";
     int port=1234;
           String line;
     Properties properties = System.getProperties();
     /*properties.put("firewallSet", "true");
     properties.put("firewallHost", "192.168.0.1");
     properties.put("firewallPort", "808");*/
     properties.put("socksProxySet","true");
     properties.put("socksProxyHost", "192.168.0.1");
     properties.put("socksProxyPort", "1080");
     System.setProperties (properties);
     try {
     /*SocketAddress addr = new InetSocketAddress("192.168.0.1", 1080);
     Proxy proxy = new Proxy(Proxy.Type.SOCKS, addr);
     Socket skt = new Socket(proxy);
     InetSocketAddress dest = new InetSocketAddress("61.17.212.29",1234);
     skt.connect(dest);*/
         System.out.println("before socket taken");
         Socket skt = new Socket(host,port);
         System.out.println("after socket taken");
         BufferedReader networkBin = new BufferedReader(new InputStreamReader(skt.getInputStream()));
         System.out.println("Received string: '");
         line = networkBin.readLine();     // Read one line
      while(true)
             System.out.println(line);     // Output the line
             line = networkBin.readLine(); // Read the next line, if any
      catch(Exception e) {
         System.out.print("Whoops! It didn't work!\n");
     e.printStackTrace();
}

Answer 1

Now look here. I could not care less about this
code. I don't know anything about it, I don't
want to know, I have already recommended you don't
use it, and I have also given you a simpler and
better solution. If you don't want to take my advice
that is your privilege and your problem.ya i has understand system propertis i have setted and u can see it in the code i have tried by both system properties and also J2SE 5.0 proxy class but i got a same problem malformed Exception server refuse to connection.
is there any problem at sever side?
can u tell me in which way u r teling to set the propery i m looking forward for ur reply.
ya i m sure u will give me.................reply "ejp".
Thnx in advance.