Index: lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/LearningDesignService.java
===================================================================
diff -u -r0d6adda33b694f55c8f56774247b82d3b6cc011f -r02a8932d9f89bee86bba5a8a138a323d2553363a
--- lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/LearningDesignService.java	(.../LearningDesignService.java)	(revision 0d6adda33b694f55c8f56774247b82d3b6cc011f)
+++ lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/LearningDesignService.java	(.../LearningDesignService.java)	(revision 02a8932d9f89bee86bba5a8a138a323d2553363a)
@@ -29,7 +29,6 @@
 public class LearningDesignService implements ILearningDesignService{
 	
 	//protected Logger log = Logger.getLogger(LearningDesignService.class);
-	private Vector listOfValidationErrorDTOs = null;
 	protected MessageService messageService;
 	
 	/*
@@ -71,7 +70,7 @@
 	public Vector validateLearningDesign(LearningDesign learningDesign)
 	{
 
-		listOfValidationErrorDTOs = new Vector();		// initialises the list of validation messages.
+		Vector listOfValidationErrorDTOs = new Vector();		// initialises the list of validation messages.
 		
 		validateActivityTransitionRules(learningDesign.getParentActivities(), learningDesign.getTransitions(), listOfValidationErrorDTOs);
 		validateGeneral(learningDesign.getActivities(), listOfValidationErrorDTOs);