I have a problem with commons-httpclient-3.1

I have a problem with commons-httpclient-3.1.
When i try to get some page, cookies do not come to me.
There is no error or exception message. Just null text.
What could you advise me?
Code:

PHP:

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

import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.HttpState;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.HttpVersion;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.SimpleHttpConnectionManager;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.cookie.CookieSpec;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpClientParams;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.commons.httpclient.params.HttpParams;




public class GetUrl {
private    Cookie[]  CookieString;
HttpClient client = new HttpClient();
HttpClientParams params = new HttpClientParams();
HttpState initialState = new HttpState();
public GetUrl()
{

      
}
public String get(String url_name)
{

     params.setParameter(HttpMethodParams.USER_AGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7");
     params.setCookiePolicy(CookiePolicy.DEFAULT);
     
    initialState.addCookies(CookieString);
    client.setState(initialState);
    client.setParams(params);
    HttpMethod method = null;
    
     method = new GetMethod(url_name);
     method.setFollowRedirects(true);
     try {
        client.executeMethod(method);
    } catch (HttpException e) {
        
        e.printStackTrace();
    } catch (IOException e) {
    
        e.printStackTrace();
    }
     String responseBody = null;
     try {
        responseBody = method.getResponseBodyAsString();
        
        
    } catch (IOException e) {
        
        e.printStackTrace();
    }
    
    /*System.out.println("Present cookies: ");
     for (int i = 0; i < header.length; i++) {
         System.out.println(" - " + header[i].getName());
     }*/
    CookieString =  initialState.getCookies();
     // Display the cookies
     System.out.println("Present cookies: ");
     for (int i = 0; i < CookieString.length; i++) {
         System.out.println(" - " + CookieString[i].toExternalForm());
     }
    System.out.println(responseBody);
    return responseBody;
  }


        
    
}

 

Did you try it with different URLs? May be the one you are trying with doesn't set any cookies! And go through the class documentation at Sun's website.