Register of global task unobserved task exception handler

Program.cs

class Program
 {
     static void Main (string[] args)
     {
         // register of global domain unhandled exception hanlder
         AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
         
         // register of global task unobserved task exception handler
         TaskScheduler.UnobservedTaskException += TaskScheduler_UnobservedTaskException;

         // exception was catch by global task unobserved task exception handler
         var t1 = RunTaskWithException (); 
         
#if (!DEBUG)
            Thread.Sleep(1000);

            GC.Collect();
            GC.WaitForPendingFinalizers();
            GC.Collect();

            Thread.Sleep(1000);
#endif

         Console.WriteLine ("Press any key to exit...");
         Console.ReadKey ();
     }

     private static void CurrentDomain_UnhandledException (object sender, UnhandledExceptionEventArgs e) 
     {
         Console.WriteLine ($"Unhandled exception occurs {e.ExceptionObject}.");
     }
     
     private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
     {
          Console.WriteLine($"Unhandled exception occurs {e.ExceptionObject}.");
     }

     private static Task<int> RunTaskWithException ()
     {
         return System.Threading.Tasks.Task.Factory.StartNew (() => 
         {
             var n1 = 1;
             var n2 = 0;
             var result = n1 / n2;
             return result;
         });
     }

 }