IEnumerable == null /*WTF*/

using System;
using System.Collections.Generic;

namespace IEnumerableBug
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                List<System.Int32> lst = new List<System.Int32>();
                lst.Add(999);
                IsIEnumerableNull(lst);
                Console.WriteLine("Post IsIEnumerableNull() call");
            }
            catch (Exception ex)
            {
                Console.WriteLine("-- Error --");
                Console.Write(ex.ToString());
            }
            finally
            {
                Console.WriteLine("\n\nPress any key to exit...");
                Console.ReadKey();
            }
        }

        public static void IsIEnumerableNull(IEnumerable<System.Int32> enumerableObj)
        {
            // validate params
            if (enumerableObj == null) throw new ArgumentNullException("enumerableObj");

            try {} catch (Exception /*e*/) { }
        }
    }
}