Index: lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/MonitoringService.java
===================================================================
diff -u -rc132bb7d3199254229dac8c10845eabea365c7e3 -ra1c1ca14a171ef3e0468aa9e5a5711be44f130c1
--- lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/MonitoringService.java	(.../MonitoringService.java)	(revision c132bb7d3199254229dac8c10845eabea365c7e3)
+++ lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/MonitoringService.java	(.../MonitoringService.java)	(revision a1c1ca14a171ef3e0468aa9e5a5711be44f130c1)
@@ -737,7 +737,6 @@
     public String forceCompleteLessonByUser(Integer learnerId,long lessonId,Long activityId) 
     {
 
-    	List currentLessonLearners = learnerService.getActiveLearnersByLesson(lessonId);
     	User learner = userDAO.getUserById(learnerId);
         Lesson newLesson = lessonDAO.getLesson(new Long(lessonId));
         Set activities = newLesson.getLearningDesign().getActivities();
@@ -765,7 +764,7 @@
             		//group does not exist
             		if(grouping.isRandomGrouping()){
             			//for random grouping, create then complete it. Continue 
-            			learnerService.performGrouping(groupActivity,currentLessonLearners);
+            			learnerService.performGrouping(lessonId, groupActivity);
 //            			grouping = groupActivity.getCreateGrouping();
 //            			myGroup = grouping.getGroupBy(learner);
             			learnerService.completeActivity(learner,activity,newLesson);
@@ -782,7 +781,7 @@
             	}
             }else if ( activity.isGateActivity() ) {
             	GateActivity gate = (GateActivity) activity;
-            	if(learnerService.knockGate(gate,learner,currentLessonLearners)){
+            	if(learnerService.knockGate(lessonId,gate,learner)){
             		//the gate is opened, continue to next activity to complete
             		learnerService.completeActivity(learner,activity,newLesson);
             		log.debug("Gate activity [" + gate.getActivityId() + "] is completed.");
Index: lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/web/GateAction.java
===================================================================
diff -u -r5be330617da306520389b76b1ebf51357dfdd8ad -ra1c1ca14a171ef3e0468aa9e5a5711be44f130c1
--- lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/web/GateAction.java	(.../GateAction.java)	(revision 5be330617da306520389b76b1ebf51357dfdd8ad)
+++ lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/web/GateAction.java	(.../GateAction.java)	(revision a1c1ca14a171ef3e0468aa9e5a5711be44f130c1)
@@ -35,7 +35,6 @@
 import org.apache.struts.action.ActionMapping;
 import org.apache.struts.action.DynaActionForm;
 import org.lamsfoundation.lams.learning.service.ILearnerService;
-import org.lamsfoundation.lams.learning.web.util.LessonLearnerDataManager;
 import org.lamsfoundation.lams.learningdesign.Activity;
 import org.lamsfoundation.lams.learningdesign.GateActivity;
 import org.lamsfoundation.lams.learningdesign.PermissionGateActivity;
@@ -159,8 +158,7 @@
         Activity gate = monitoringService.getActivityById(gateId);
         
         //setup the total learners
-        int totalLearners = LessonLearnerDataManager.getAllLessonLearners(getServlet().getServletContext(),lessonId,learnerService)
-                                                    .size();
+        int totalLearners = learnerService.getActiveLearnersByLesson(lessonId).size();
         gateForm.set(TOTAL_LEARNERS_FORM_FIELD,new Integer(totalLearners));
         gateForm.set(ACTIVITY_FORM_FIELD,gateIdLong);