anchor.diff:  			if (sNVType == null)
   				sNVType = "";
   			String sSelConcatChar = (String) session.getAttribute("sConcatChar");
  +			if (sSelConcatChar == null)
  +				sSelConcatChar = "";
   			String sSelRule = (String) session.getAttribute("sRule");
  +			if (sSelRule == null)
  +				sSelRule = "";
   			String sSelMethod = (String) session.getAttribute("sMethod");
  +			if (sSelMethod == null)
  +				sSelMethod = "";
   			Vector vRepType = new Vector();
   			Vector vDEComp = new Vector();
   			Vector vDECompID = new Vector();
  
positive.code: <!-- Copyright (c) 2006 ScenPro, Inc.
      $Header: /cvsshare/content/cvsroot/cdecurate/WebRoot/jsp/EditDE.jsp,v 1.21 2009-02-26 18:14:32 veerlah Exp $
      $Name: not supported by cvs2svn $
  -->
  
  
negative.code: 			if ((sDDEAction != null) && (sDDEAction != "CreateNewDEFComp")) {
  				vRepType = (Vector) session.getAttribute("vRepType");
  				vDEComp = (Vector) session.getAttribute("vDEComp");
  				if (vDEComp == null)
  				  vDEComp = new Vector();
  				vDECompID = (Vector) session.getAttribute("vDECompID");
  				if (vDECompID == null)
  				   vDECompID = new Vector();
  				vDECompOrder = (Vector) session.getAttribute("vDECompOrder");
  				if (vDECompOrder == null)
  				   vDECompOrder = new Vector();
  			    vDECompRelID = (Vector) session.getAttribute("vDECompRelID");
  			    if (vDECompRelID == null)
  			       vDECompRelID = new Vector(); 
  			}
              String sDEID = "";
  			String sDECompOrder = "";
  			if ((vDECompOrder != null) && (vDECompOrder.size() > 0))
  				sDECompOrder = (String) vDECompOrder.elementAt(0);
  