@Nls
 @Override
 public String getDisplayName() {
   if (myEp.displayName == null && myEp.key == null) {
     boolean loaded = myConfigurable != null;
     Configurable configurable = cast(Configurable.class, this);
     if (configurable != null) {
       String name = configurable.getDisplayName();
       if (!loaded && LOG.isDebugEnabled()) {
         LOG.debug("XML does not provide displayName for " + configurable.getClass());
       }
       return name;
     }
   }
   return myEp.getDisplayName();
 }