Index: lams_tool_forum/src/java/org/lamsfoundation/lams/tool/forum/service/ForumOutputFactory.java
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_forum/src/java/org/lamsfoundation/lams/tool/forum/service/ForumOutputFactory.java,v
diff -u -r1.12 -r1.13
--- lams_tool_forum/src/java/org/lamsfoundation/lams/tool/forum/service/ForumOutputFactory.java	19 Feb 2015 15:00:41 -0000	1.12
+++ lams_tool_forum/src/java/org/lamsfoundation/lams/tool/forum/service/ForumOutputFactory.java	19 Jun 2015 14:07:20 -0000	1.13
@@ -148,7 +148,7 @@
 	    Map<Date, Set<String>> answers = new HashMap<Date, Set<String>>();
 
 	    ForumUser user = forumService.getUserByUserAndSession(learnerId, toolSessionId);
-	    List<MessageDTO> userMessages = forumService.getMessagesByUserUid(user.getUid(), toolSessionId);
+	    List<MessageDTO> userMessages = user == null ? null : forumService.getMessagesByUserUid(user.getUid(), toolSessionId);
 
 	    if (userMessages != null) {
 		for (MessageDTO messageDTO : userMessages) {