diff a/main_vm/src/main/java/com/icomsys/main_vm/biz/rcp/conversation/controller/ConversationSynonymController.java b/main_vm/src/main/java/com/icomsys/main_vm/biz/rcp/conversation/controller/ConversationSynonymController.java	(rejected hunks)
@@ -90,6 +90,7 @@
 
     @RequestMapping("/synonym/dupCheck.do")
     public ModelAndView dupCheck(HttpServletRequest request, @RequestParam Map<String, String> dataMap) {
+        String serviceCode = dataMap.get("serviceCode") == null ? null : dataMap.get("serviceCode");
 
         ModelAndView mv = new ModelAndView(ajaxMainView);
 
