From c809b669b98a559bb2aea5fdf0b455652a834e2d Mon Sep 17 00:00:00 2001
From: Justin Kotalik <jkotalik12@gmail.com>
Date: Tue, 30 Jul 2019 12:55:13 -0700
Subject: [PATCH] Catch all exceptions from Exit shutdown (#12518)

---
 src/Hosting/Hosting/src/WebHostExtensions.cs | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/Hosting/Hosting/src/WebHostExtensions.cs b/src/Hosting/Hosting/src/WebHostExtensions.cs
index e73399c419..6814d1d49f 100644
--- a/src/Hosting/Hosting/src/WebHostExtensions.cs
+++ b/src/Hosting/Hosting/src/WebHostExtensions.cs
@@ -135,18 +135,21 @@ namespace Microsoft.AspNetCore.Hosting
         {
             void Shutdown()
             {
-                if (!cts.IsCancellationRequested)
+                try
                 {
-                    if (!string.IsNullOrEmpty(shutdownMessage))
-                    {
-                        Console.WriteLine(shutdownMessage);
-                    }
-                    try
+                    if (!cts.IsCancellationRequested)
                     {
+                        if (!string.IsNullOrEmpty(shutdownMessage))
+                        {
+                            Console.WriteLine(shutdownMessage);
+                        }
                         cts.Cancel();
                     }
-                    catch (ObjectDisposedException) { }
                 }
+                // When hosting with IIS in-process, we detach the Console handle on main thread exit.
+                // Console.WriteLine may throw here as we are logging to console on ProcessExit.
+                // We catch and ignore all exceptions here. Do not log to Console in thie exception handler.
+                catch (Exception) { }
 
                 // Wait on the given reset event
                 resetEvent.Wait();
@@ -184,4 +187,4 @@ namespace Microsoft.AspNetCore.Hosting
             await host.StopAsync();
         }
     }
-}
\ No newline at end of file
+}