chia7712 commented on code in PR #15800: URL: https://github.com/apache/kafka/pull/15800#discussion_r1578597252
########## core/src/test/java/kafka/test/junit/ClusterTestExtensions.java: ########## @@ -123,8 +123,7 @@ private void processClusterTemplate(ExtensionContext context, ClusterTemplate an if (!annot.value().isEmpty()) { generateClusterConfigurations(context, annot.value(), generatedClusterConfigs::add); } else { - // Ensure we have at least one cluster config - generatedClusterConfigs.add(ClusterConfig.defaultClusterBuilder().build()); + throw new IllegalStateException("Annotation value can't be empty string."); Review Comment: Could we check `annot.value().isEmpty()` first? for example: ```java if (annot.value().isEmpty()) throw exception; ``` With above change, we can simplify the if-else -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org