private String stringCategoryProcess(List<String> values) {
   StringBuilder outPut = new StringBuilder();
   if (!values.isEmpty()) {
     for (String value : values) {
       if (!ForumUtils.isEmpty(value)) {
         if (value.indexOf('(') > 0) {
           String forumSubPath = value.substring(value.lastIndexOf('(')).replace("(", "");
           String categoryId = forumSubPath.split("/")[0];
           Category category = getForumService().getCategory(categoryId);
           if (category != null) {
             outPut.append(category.getCategoryName() + "\n");
           } else {
             removeItemContainsInList(listModCate, categoryId);
             removeItemContainsInList(listModerate, categoryId);
           }
         }
       }
     }
   }
   return outPut.toString();
 }