From 699aff2e4c0655054989dc1c3b87bf7822ba12d5 Mon Sep 17 00:00:00 2001
From: Gregorius Soedharmo <arkatufus@yahoo.com>
Date: Sat, 2 Nov 2024 00:26:12 +0700
Subject: [PATCH] [Streams] Fix ShellRegistered message deadletter log (#7376)

---
 .../Implementation/Fusing/ActorGraphInterpreter.cs            | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/Akka.Streams/Implementation/Fusing/ActorGraphInterpreter.cs b/src/core/Akka.Streams/Implementation/Fusing/ActorGraphInterpreter.cs
index c97c51cb558..5b6c72aaf55 100644
--- a/src/core/Akka.Streams/Implementation/Fusing/ActorGraphInterpreter.cs
+++ b/src/core/Akka.Streams/Implementation/Fusing/ActorGraphInterpreter.cs
@@ -767,7 +767,9 @@ public AsyncInput(GraphInterpreterShell shell, GraphStageLogic logic, object @ev
             public GraphInterpreterShell Shell { get; }
         }
 
-        private class ShellRegistered
+        // This is the Resume internal API message in JVM, it is used to prevent/short circuit recursive calls
+        // inside a stream. Harmless when dead-lettered.
+        private class ShellRegistered: IDeadLetterSuppression
         {
             public static readonly ShellRegistered Instance = new();
             private ShellRegistered()