Issue in Privacy List

Hi , I am working on a chat application on android platform using asmack library and openfire 3.7.1 as a server. Now i want to block a particular friend from my chat list. my code for doing this :

public void blockUser(String userName)

{

String listName = “newList”;

// Create the list of PrivacyItem that will allow or

// deny some privacy aspect

//ArrayList privacyItems = new ArrayList();

List privacyItems = new Vector();

PrivacyItem item=new PrivacyItem(PrivacyItem.Type.jid.toString(), false, 1);

item.setValue(userName);

privacyItems.add(item);

// Get the privacy manager for the current connection.

// Create the new list.

privacyManager = PrivacyListManager.getInstanceFor(mXMPPConnection);

try

{

privacyManager.createPrivacyList(listName,privacyItems);

}

catch(Exception e)

{

Log.e("PRIVACY_ERROR: “,” "+e.toString());

e.printStackTrace();

}

}

code works fine . there is no Exception but i am not able to block a user. Can anyone help me. Thanks in advance.

Smack Logs which i got :

09-04 19:00:37.848: D/SMACK(3895): 07:00:37 PM SENT (1149259528):

09-04 19:00:38.248: D/SMACK(3895): 07:00:38 PM RCV (1149259528):

09-04 19:00:38.368: D/SMACK(3895): 07:00:38 PM SENT (1149259528):

09-04 19:00:38.658: D/SMACK(3895): 07:00:38 PM RCV (1149259528):