private void AddPreDestroyMethodPoints(TypeDescription description, MethodInfo[] methods)
        {
            List <OrderedInjectionPoint> orderedInjectionPoints = new List <OrderedInjectionPoint> ();

            foreach (MethodInfo method in methods)
            {
                object[] injections = method.GetCustomAttributes(PRE_DESTROY_ATTRIBUTE_TYPE, true);
                if (injections.Length == 0)
                {
                    continue;
                }

                PreDestroy attr = injections [0] as PreDestroy;

                PreDestroyInjectionPoint injectionPoint = new PreDestroyInjectionPoint(attr.order, method);
                orderedInjectionPoints.Add(injectionPoint);
            }

            orderedInjectionPoints.Sort(SortInjectionPoints);
            foreach (PreDestroyInjectionPoint point in orderedInjectionPoints)
            {
                description.AddPreDestroyMethod(point);
            }
        }