docs: private State checkV3Parameterization(Class<?> cls, State state) throws NoClassDefFoundError {
      // check for a V3 Parameterizer class
      for(Class<?> inner : cls.getDeclaredClasses()) {
        if(AbstractParameterizer.class.isAssignableFrom(inner)) {
          try {
            Class<? extends AbstractParameterizer> pcls = inner.asSubclass(AbstractParameterizer.class);
            pcls.newInstance();
            if(checkParameterizer(cls, pcls)) {
              if(state == State.INSTANTIABLE) {
                LOG.warning("More than one parameterization method in class " + cls.getName());
              }
              state = State.INSTANTIABLE;
            }
          }
          catch(Exception|Error e) {
            LOG.verbose("Could not run Parameterizer: " + inner.getName() + ": " + e.getMessage());
            // continue. Probably non-public
          }
        }
      }
      return state;
    }