Index: lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/dao/hibernate/MindmapRequestDAO.java
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/dao/hibernate/MindmapRequestDAO.java,v
diff -u -r1.5.2.5 -r1.5.2.6
--- lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/dao/hibernate/MindmapRequestDAO.java	11 May 2016 07:37:45 -0000	1.5.2.5
+++ lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/dao/hibernate/MindmapRequestDAO.java	3 Aug 2016 00:26:06 -0000	1.5.2.6
@@ -82,7 +82,8 @@
 	q.setParameter(1, sessionId);
 	q.setMaxResults(1);
 	Object result = q.uniqueResult();
-	return result != null ? ((Number) result).longValue() : null;
+	// must return a valid number or calling code will throw a null ptr exception.
+	return result != null ? ((Number) result).longValue() : 0L; 
     }
 
     @Override