https://stackoverflow.com/questions/66707139/how-to-throw-a-deserialized-exception

CSharp · Console

/Program.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization.Formatters;
using System.IO;
using System.Data;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Reflection;
using System.Collections.ObjectModel;
using System.Runtime.ExceptionServices;
using System.Runtime.Serialization;

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Serialization;	

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

//https://stackoverflow.com/questions/66707139/how-to-throw-a-deserialized-exception

    class TestClass
    {
        public static void Test()
        {
			try
			{
				try
				{
					ThrowAnException();	
				}
				catch (Exception ex)
				{
					var settings = new JsonSerializerSettings
					{
						TypeNameHandling = TypeNameHandling.All,
						Context = new StreamingContext(StreamingContextStates.CrossAppDomain),
					};
					var exceptionString = JsonConvert.SerializeObject(ex, Formatting.Indented, settings);
					Console.WriteLine(exceptionString);
					var exception = JsonConvert.DeserializeObject<Exception>(exceptionString, settings);
					ThrowADeserializedException(exception);
				}
			}
			catch (Exception ex)
			{
				Console.WriteLine("Rethrown exception traceback:");
				Console.WriteLine(ex);
				Assert.IsTrue(ex.StackTrace.Contains(nameof(ThrowAnException)));
			}
		}	

		public static void ThrowADeserializedException(Exception exception)
		{
			// Throw the same Exception: The stacktrace is changed. Ex.: at HandleException()
			ExceptionDispatchInfo.Capture(exception).Throw();			
		}
		
		public static void ThrowAnException()
		{
			throw new Exception("some exception");
		}
	}

	public class Program
	{
		public static void Main()
		{
			Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());
			Console.WriteLine("{0} version: {1}", typeof(JsonSerializer).Assembly.GetName().Name,  typeof(JsonSerializer).Assembly.FullName);
			Console.WriteLine();

			try
			{
				TestClass.Test();
			}
			catch (Exception ex)
			{
				Console.WriteLine("Failed with unhandled exception: ");
				Console.WriteLine(ex);
				throw;
			}
		}
		
		public static string GetNetCoreVersion()
		{
			//https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be
			//
			var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;
			var assemblyPath = assembly.Location.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);
			int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");
			if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)
				return assemblyPath[netCoreAppIndex + 1];
			return null;
		}
	}