code: public static Class convertPrimitiveToWrapper(Class clazz) {
  		if (clazz == null || !clazz.isPrimitive())
  			return clazz;
  
  		return (Class) primativeToWrapperMap.get(clazz);
  	}
docs: Gets the equivalent class to convert to if the given clazz is a
  primitive.
  
  @param clazz Class to examin.
  @return the class to convert to or the inputted clazz.