diff --git a/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/tcp/impl/cloudevent/CloudEventTCPPubClient.java b/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/tcp/impl/cloudevent/CloudEventTCPPubClient.java
index 935cd55c38..9be280f563 100644
--- a/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/tcp/impl/cloudevent/CloudEventTCPPubClient.java
+++ b/eventmesh-sdk-java/src/main/java/org/apache/eventmesh/client/tcp/impl/cloudevent/CloudEventTCPPubClient.java
@@ -96,7 +96,6 @@ public void asyncRR(CloudEvent event, AsyncRRCallback callback, long timeout) th
             super.send(msg);
             this.callbackConcurrentHashMap.put((String) RequestContext.key(msg), callback);
         } catch (Exception ex) {
-            // should trigger callback?
             throw new EventMeshException("asyncRR error", ex);
         }
     }