code: public Class<?> marshalType(Class<?> sourceType)
    {
      if (sourceType == null) {
        return null;
      }
      
      Class<?> targetType = getTargetType(getTargetLoader(), sourceType);
        
      if (targetType != null) {
        return targetType;
      }
      else {
        return sourceType;
      }
    }
docs: Marshal from an array of source types to an array of dest types.