junrao commented on code in PR #18997:
URL: https://github.com/apache/kafka/pull/18997#discussion_r1968324927


##########
metadata/src/test/java/org/apache/kafka/controller/QuorumControllerTestEnv.java:
##########
@@ -135,10 +135,6 @@ private QuorumControllerTestEnv(
     }
 
     QuorumController activeController() throws InterruptedException {
-        return activeController(false);
-    }
-
-    QuorumController activeController(boolean waitForActivation) throws 
InterruptedException {

Review Comment:
   `controlEnv.activeController()` is called multiple times in some of the 
tests. It's a bit wasteful to have to append/wait for a new event in every 
call. Perhaps we could cache the returned `QuorumController` and reuse it in 
those tests.



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