Async ConfigureAwait and deadocks

Scenario:

Async ConfigureAwait and deadocks

Solution:

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

namespace ConsoleApplication1
{
    class ProgramTaskRunDeadlock
    {
        static void Main(string[] args)
        {
            string url = "http://www.google.com";

            //Can lead to deadlock as this blocking the main context and so when the control goes back to method CurlUrl it does not get the context
            var result = CurlUrl(url).Result;
        }

        public async static Task<string> CurlUrl(string url)
        {
            using (var httpclient = new HttpClient())
            {
                using (var response = await httpclient.GetAsync("http://www.google.com"))
                {
                    return await response.Content.ReadAsStringAsync();
                }
            }
        }
    }

    class ProgramTaskRunConfigureawait
    {
        static void Main(string[] args)
        {
            string url = "http://www.google.com";

            //as await are now .ConfigureAwait(false), method CurlUrl would not resume on the context, but on thread pool thread
            //So CurlUrl can complete the Task without need of reentering the context. 
            //note: Main method would always require the context
            var result = CurlUrl(url).Result;
        }

        public async static Task<string> CurlUrl(string url)
        {
            using (var httpclient = new HttpClient())
            {
                using (var response = await httpclient.GetAsync("http://www.google.com").ConfigureAwait(false))
                {
                    return await response.Content.ReadAsStringAsync().ConfigureAwait(false);
                }
            }
        }
    }

    class ProgramTaskRunAsyncAllTheWay
    {
        static async Task Main(string[] args)
        {
            string url = "http://www.google.com";

            //Now the context is not blocked as all waits are asynchronous.
            var result = await CurlUrl(url);
        }

        public async static Task<string> CurlUrl(string url)
        {
            using (var httpclient = new HttpClient())
            {
                using (var response = await httpclient.GetAsync("http://www.google.com"))
                {
                    return await response.Content.ReadAsStringAsync();
                }
            }
        }
    }
}