fix: `metadata` is never `null`

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / implementation / kafka / DataChannel.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/implementation/kafka/DataChannel.java b/src/main/java/de/juplo/kafka/chat/backend/implementation/kafka/DataChannel.java
index da90663..381152b 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/implementation/kafka/DataChannel.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/implementation/kafka/DataChannel.java
@@ -96,7 +96,7 @@ public class DataChannel implements Runnable, ConsumerRebalanceListener
 
       producer.send(record, ((metadata, exception) ->
       {
-        if (metadata != null)
+        if (exception == null)
         {
           // On successful send
           Message message = new Message(key, metadata.offset(), timestamp, text);