Index: lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/web/MonitoringAction.java
===================================================================
RCS file: /usr/local/cvsroot/lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/web/MonitoringAction.java,v
diff -u -r1.118.2.39 -r1.118.2.40
--- lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/web/MonitoringAction.java	11 May 2016 07:14:44 -0000	1.118.2.39
+++ lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/web/MonitoringAction.java	20 Jun 2016 08:47:21 -0000	1.118.2.40
@@ -104,18 +104,6 @@
  * </p>
  *
  * @author Jacky Fang
- * @since 2005-4-15
- * @version 1.1
- *
- *
- *
- *
- *
- *
- *
- *
- *
- *
  */
 public class MonitoringAction extends LamsDispatchAction {
 
@@ -1090,15 +1078,14 @@
 	    activityJSON.put("type", activity.getActivityTypeId());
 
 	    Activity parentActivity = activity.getParentActivity();
-	    if (activity.isBranchingActivity() && (((BranchingActivity) activity).getXcoord() == null)) {
+	    if (activity.isBranchingActivity() && (activity.getXcoord() == null)) {
 		// old branching is just a rectangle like Tool
 		// new branching has start and finish points, it's exploded
 		activityJSON.put("x",
 			MonitoringAction.getActivityCoordinate(((BranchingActivity) activity).getStartXcoord()));
 		activityJSON.put("y",
 			MonitoringAction.getActivityCoordinate(((BranchingActivity) activity).getStartYcoord()));
-	    } else if (activity.isOptionsWithSequencesActivity()
-		    && (((OptionsWithSequencesActivity) activity).getXcoord() == null)) {
+	    } else if (activity.isOptionsWithSequencesActivity() && (activity.getXcoord() == null)) {
 		// old optional sequences is just a long rectangle
 		// new optional sequences has start and finish points, it's exploded
 		activityJSON.put("x", MonitoringAction