ObserverManager: Guard against null in constructor (#8358)

* check logger for null * Update src/Orleans.Core/Utils/ObserverManager.cs * Update src/Orleans.Core/Utils/ObserverManager.cs --------- Co-authored-by: Setup <[email protected]> Co-authored-by: Reuben Bond <[email protected]>
dotnet · Apr 3, 2023 · f642de6 · f642de6
1 parent 53d2ead
commit f642de6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Orleans.Core/Utils/ObserverManager.cs b/src/Orleans.Core/Utils/ObserverManager.cs
@@ -59,7 +59,7 @@ public class ObserverManager<TIdentity, TObserver> : IEnumerable<TObserver>
         public ObserverManager(TimeSpan expiration, ILogger log)
         {
             ExpirationDuration = expiration;
-            _log = log;
+            _log = log ?? throw new ArgumentNullException(nameof(log));
             GetDateTime = () => DateTime.UtcNow;
         }