From 4c82deae46743c3c54260747a626394f6f1514f8 Mon Sep 17 00:00:00 2001
From: Brad Wilson <dotnetguy@gmail.com>
Date: Fri, 19 Apr 2024 22:14:52 -0700
Subject: [PATCH] Asking for default threads should set 0, not null

---
 src/xunit.runner.utility/Configuration/ConfigReader_Json.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/xunit.runner.utility/Configuration/ConfigReader_Json.cs b/src/xunit.runner.utility/Configuration/ConfigReader_Json.cs
index 3743e5471..e78a68c28 100644
--- a/src/xunit.runner.utility/Configuration/ConfigReader_Json.cs
+++ b/src/xunit.runner.utility/Configuration/ConfigReader_Json.cs
@@ -125,7 +125,7 @@ static TestAssemblyConfiguration LoadConfiguration(Stream configStream, string c
                             else if (propertyValue is JsonString stringValue)
                             {
                                 if (string.Equals("default", stringValue, StringComparison.OrdinalIgnoreCase))
-                                    result.MaxParallelThreads = null;
+                                    result.MaxParallelThreads = 0;
                                 else if (string.Equals("unlimited", stringValue, StringComparison.OrdinalIgnoreCase))
                                     result.MaxParallelThreads = -1;
                                 else