Fixed potential null pointer exception in IQPEPHandler. JM-1177

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@9439 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/openfire/pep/IQPEPHandler.java

@@ -495,6 +495,10 @@ public class IQPEPHandler extends IQHandler implements ServerIdentitiesProvider,
     public void availableSession(ClientSession session, Presence presence) {
         JID newlyAvailableJID = presence.getFrom();
         
+        if (newlyAvailableJID == null) {
+            return;
+        }
+
         // Send the last published items for the contacts on newlyAvailableJID's roster. 
         try {
             Roster roster = XMPPServer.getInstance().getRosterManager().getRoster(newlyAvailableJID.getNode());