gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Diagnostics;

namespace ConsoleApplication11 {
    class Program {

        class Foo  {

            int[] nums = new int[10000];

            public void Dispose2() {
                var weakRef = GetWeakRef();    
                GC.Collect();
                GC.WaitForPendingFinalizers();
                GC.SuppressFinalize(weakRef.Target); 
            }

            private WeakReference GetWeakRef() {
                var weakRef = new WeakReference(this);
                return weakRef;
            }

            ~Foo() {
                Debug.Assert(false);
            }
        }
        
        static void Main(string[] args) {

            Stack<Foo> foos = new Stack<Foo>(Enumerable.Range(1,50000).Select(_ => new Foo()));

            Console.WriteLine("got foo");

            while(foos.Count > 0) {
                var foo = foos.Pop();
                foo.Dispose2();
            }
        }
    }
}