Aggregate Exception, C#

Aggregate Exception

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

// aljodav
// http://rextester.com/users/376

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            try{
                Foo(3).Wait(); // Foo(0) provokes a NON  AggregateException.
            }catch(AggregateException ae){
                Console.WriteLine("Aggregate Exception:");
                foreach(var e in ae.Flatten().InnerExceptions){Console.WriteLine("\t"+e.Message);}
            }catch{
                Console.WriteLine("other exception(s) caught in main.");
            }finally{
                Console.WriteLine("Hello, world!");
            }
        }
        public static Task Foo(int j){
            if(j==0){throw new InvalidOperationException();}
            return Task.Run(()=>{ // eventually, will throw Divide By Zero Exception (will be caught in Main)
                for(int i=10;i>=0;--i){var v=j/i;Console.WriteLine(v);}
            });
        }
    }
}


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