using System;

using System.Threading;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        try {

            new AppWithReturn().TestException().Wait();

        } catch(Exception ex) {

            Console.WriteLine("Task with return:");

            Console.WriteLine();

            Console.WriteLine(ex);

        }

        Console.WriteLine();

        Console.WriteLine();

        try {

            new AppWithAwait().TestException().Wait();

        } catch(Exception ex2) {

            Console.WriteLine("Task with await");

            Console.WriteLine();

            Console.WriteLine(ex2);

        }

    }

}

​

public class AppWithAwait {

    public async Task TestException() {

        await Inner();

    }

    public async Task Inner() {

        await Inner2();

    }

    public async Task Inner2() {

        await Task.Delay(1);

        throw new Exception("Test");

    }

}

​

public class AppWithReturn {

    public Task TestException() {

        return Inner();

    }

    public Task Inner() {

        return Inner2();

    }

    public async Task Inner2() {

        await Task.Delay(1);

        throw new Exception("Test");

    }

}