code: private void initializeReader()
      {
          boolean isNative = kunderaQuery.isNative();
  
          if (!isNative)
          {
              getReader().setConditions(getKunderaQuery().getFilterClauseQueue());
  
              getReader().setFilter(getKunderaQuery().getFilter());
          }
      }
docs: Initializes reader with conditions and filter in case for JPA/Named query
  only!