code: public void addFilter(final Class<? extends Annotation> annotationClass,
          final Class<? extends Filter> filterClass) {
          mapper.filterMap.put(annotationClass, filterClass);
      }
docs: /*
  These methods that modified the filters, adapters, injectors and handlers, will not
  only modify this object, but will modify the all the objects that of this class.
  
  You may not want do it in production. I do it for the test, maybe I can find a better way.