Index: lams_tool_laqa/src/java/org/lamsfoundation/lams/tool/qa/web/LearningUtil.java
===================================================================
diff -u -r06766573847af75c683241ab63dd5f993e02fdbb -r1dc9ac47429c0b0924cb732ac63011886830e500
--- lams_tool_laqa/src/java/org/lamsfoundation/lams/tool/qa/web/LearningUtil.java	(.../LearningUtil.java)	(revision 06766573847af75c683241ab63dd5f993e02fdbb)
+++ lams_tool_laqa/src/java/org/lamsfoundation/lams/tool/qa/web/LearningUtil.java	(.../LearningUtil.java)	(revision 1dc9ac47429c0b0924cb732ac63011886830e500)
@@ -120,6 +120,7 @@
             		
             		String feedback=qaQueContent.getFeedback();
             		logger.debug("feedback: " + feedback);
+            		if (feedback == null) feedback="";
             		
             		mapFeedback.put(new Integer(displayOrder).toString(), feedback.trim());
         		}