Get null return value from ExecutionContext caused an exception

Author: chriswalpen

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## v3.0.1
+## v3.0.2
 ### Fixed
 - Get null return value from ExecutionContext caused an exception
 

src/MeasureMap/ProfilerResult.cs

@@ -11,7 +11,7 @@ namespace MeasureMap
     /// </summary>
     public class ProfilerResult : IProfilerResult
     {
-        private readonly List<IResult> _results = new List<IResult>();
+        private readonly List<IResult> _results = new();
 
         /// <summary>
         /// Creates a profiler result
@@ -130,6 +130,11 @@ public TimeSpan TotalTime
         /// <param name="result"></param>
         public void Add(IResult result)
         {
+            if (result == null)
+            {
+                return;
+            }
+
             _results.Add(result);
             Last = result;
         }