kirktrue commented on code in PR #14406:
URL: https://github.com/apache/kafka/pull/14406#discussion_r1334872019


##########
clients/src/main/java/org/apache/kafka/clients/consumer/internals/DefaultBackgroundThread.java:
##########
@@ -259,17 +144,41 @@ long handlePollResult(NetworkClientDelegate.PollResult 
res) {
     }
 
     public boolean isRunning() {
-        return this.running;
+        return running;
     }
 
     public void wakeup() {
-        networkClientDelegate.wakeup();
+        if (networkClientDelegate != null)

Review Comment:
   Do you mean if `networkClientDelegate` is still `null`? Yes. That can happen 
if the object is constructed and then used without calling 
`initializeResources` beforehand. Perhaps a comment or a restructuring of the 
code could be made.



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