http://stackoverflow.com/questions/27732546

stackoverflow_27732546.cs

using System;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace HttpClientMemoryLeak
{
    class Program
    {
        private static CookieContainer _Cookies = new CookieContainer();

        public static async Task TestMethod()
        {
            using (HttpClientHandler handler = new HttpClientHandler())
            {
                handler.UseCookies = true;
                handler.CookieContainer = _Cookies;

                using (HttpClient client = new HttpClient(handler, true))
                {
                    client.Timeout = new TimeSpan(0, 0, 1);
                    client.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", "asd");

                    try
                    {
                        using (StringContent sData = new StringContent("hello", Encoding.UTF8))
                        using (HttpResponseMessage response = await client.PutAsync("https://localhost/", sData))
                        {
                            using (var content = response.Content)
                            {
                                var ret = await content.ReadAsStringAsync();
                            }
                        }
                    }
                    catch (ThreadAbortException)
                    {
                        throw;
                    }
                    catch (Exception ex)
                    {
                    }
                }
            }
        }

        static void Main(string[] args)
        {
            for (int i = 0; i < 1000000; i++)
            {
                TestMethod().Wait();
            }

            Console.WriteLine("Finished!");
            Console.ReadKey();
        }
    }
}