From 19dc4a141cae8f09415c8766ef5b450d78390381 Mon Sep 17 00:00:00 2001
From: Rolf Kristensen <sweaty1@hotmail.com>
Date: Sun, 7 Dec 2025 19:10:04 +0100
Subject: [PATCH] LogMessage GetProperties without FrozenDictionary

---
 src/core/Akka/Event/LogMessage.cs | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/core/Akka/Event/LogMessage.cs b/src/core/Akka/Event/LogMessage.cs
index ba2531af548..229e63e1108 100644
--- a/src/core/Akka/Event/LogMessage.cs
+++ b/src/core/Akka/Event/LogMessage.cs
@@ -79,7 +79,15 @@ public IReadOnlyDictionary<string, object> GetProperties()
                 // Optimize: avoid ToArray() if Parameters() already returns IReadOnlyList
                 if (parameters is IReadOnlyList<object> readOnlyList)
                 {
-                    _properties = CreatePropertyDictionary(PropertyNames, readOnlyList);
+                    if (readOnlyList.Count == 0)
+                    {
+                        // Optimize: Skips parsing PropertyNames when empty Parameters()
+                        _properties = EmptyDictionary;
+                    }
+                    else
+                    {
+                        _properties = CreatePropertyDictionary(PropertyNames, readOnlyList);
+                    }
                 }
                 else
                 {
@@ -109,12 +117,7 @@ private static IReadOnlyDictionary<string, object> CreatePropertyDictionary(
                 dict[names[i]] = values[i];
             }
 
-#if NET8_0_OR_GREATER
-            // Use FrozenDictionary for optimal read performance on .NET 8+
-            return System.Collections.Frozen.FrozenDictionary.ToFrozenDictionary(dict);
-#else
             return dict;
-#endif
         }
 
         private static readonly IReadOnlyDictionary<string, object> EmptyDictionary =