/**
  * DOC ggu Comment method "getDisplayCategory".
  *
  * <p>mainly for label provider of update manager dialog.
  *
  * @param result
  * @return
  */
 public String getDisplayCategory(UpdateResult result) {
   IProcessUpdateManagerProvider[] processProviders = reader.getProcessProviders();
   for (IProcessUpdateManagerProvider provider : processProviders) {
     String displayLabel = provider.getDisplayCategory(result);
     if (displayLabel != null) {
       return displayLabel;
     }
   }
   return null;
 }