From d1e304741019b4796435994b8b27151b36e502d8 Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Mon, 19 Nov 2018 15:40:46 +0300
Subject: [PATCH] Don't be noisy about just-in-case Dispose call on disposed
 object on finalizer thread

---
 src/Shared/PlatformSupport/StandardRuntimePlatform.cs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Shared/PlatformSupport/StandardRuntimePlatform.cs b/src/Shared/PlatformSupport/StandardRuntimePlatform.cs
index 186c55d9eb..8a5a725594 100644
--- a/src/Shared/PlatformSupport/StandardRuntimePlatform.cs
+++ b/src/Shared/PlatformSupport/StandardRuntimePlatform.cs
@@ -89,9 +89,11 @@ namespace Avalonia.Shared.PlatformSupport
 #if DEBUG
                 if (Thread.CurrentThread.ManagedThreadId == GCThread?.ManagedThreadId)
                 {
-                    Console.Error.WriteLine("Native blob disposal from finalizer thread\nBacktrace: "
-                                            + Environment.StackTrace
-                                            + "\n\nBlob created by " + _backtrace);
+                    lock(_lock)
+                        if (!IsDisposed)
+                            Console.Error.WriteLine("Native blob disposal from finalizer thread\nBacktrace: "
+                                                    + Environment.StackTrace
+                                                    + "\n\nBlob created by " + _backtrace);
                 }
 #endif
                 DoDispose();