Fixed NPE when trying to get the vCard of an anonymous user. JM-212

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@1127 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/messenger/handler/IQvCardHandler.java

@@ -86,12 +86,13 @@ public class IQvCardHandler extends IQHandler {
                 result = IQ.createResultIQ(packet);
             }
             else if (type.equals(IQ.Type.get)) {
-                User user = userManager.getUser(recipient.getNode());
                 result = IQ.createResultIQ(packet);
 
                 Element vcard = DocumentHelper.createElement(QName.get("vCard", "vcard-temp"));
                 result.setChildElement(vcard);
-
+                // Only try to get the vCard values of non-anonymous users 
+                if (recipient.getNode() != null) {
+                    User user = userManager.getUser(recipient.getNode());
                     VCardManager vManager = VCardManager.getInstance();
                     Collection<String> names = vManager.getVCardPropertyNames(user.getUsername());
                     for (String name : names) {
@@ -100,13 +101,16 @@ public class IQvCardHandler extends IQHandler {
                         node.setText(vManager.getVCardProperty(user.getUsername(), name));
                     }
                 }
+            }
             else {
                 result = IQ.createResultIQ(packet);
+                result.setChildElement(packet.getChildElement().createCopy());
                 result.setError(PacketError.Condition.not_acceptable);
             }
         }
         catch (UserNotFoundException e) {
             result = IQ.createResultIQ(packet);
+            result.setChildElement(packet.getChildElement().createCopy());
             result.setError(PacketError.Condition.item_not_found);
         }
         return result;