cmccabe commented on code in PR #13826:
URL: https://github.com/apache/kafka/pull/13826#discussion_r1227243709


##########
core/src/main/scala/kafka/server/ApiVersionManager.scala:
##########
@@ -141,24 +136,22 @@ class DefaultApiVersionManager(
   val enabledApis = ApiKeys.apisForListener(listenerType).asScala
 
   override def apiVersionResponse(throttleTimeMs: Int): ApiVersionsResponse = {
-    val supportedFeatures = features.supportedFeatures
+    val supportedFeatures = brokerFeatures.supportedFeatures
     val finalizedFeatures = metadataCache.features()
     val controllerApiVersions = 
forwardingManager.flatMap(_.controllerApiVersions)
 
     ApiVersionsResponse.createApiVersionsResponse(
       throttleTimeMs,
-      metadataCache.metadataVersion().highestSupportedRecordVersion,
+      finalizedFeatures.metadataVersion().highestSupportedRecordVersion,
       supportedFeatures,
-      finalizedFeatures.features.map(kv => (kv._1, 
kv._2.asInstanceOf[java.lang.Short])).asJava,
-      finalizedFeatures.epoch,
+      finalizedFeatures.finalizedFeatures(),
+      finalizedFeatures.finalizedFeaturesEpoch(),
       controllerApiVersions.orNull,
       listenerType,
       enableUnstableLastVersion,
       zkMigrationEnabled
     )
   }
 
-  override def apiVersionResponse(throttleTimeMs: Int, finalizedFeatures: 
Map[String, java.lang.Short], finalizedFeatureEpoch: Long): ApiVersionsResponse 
= {
-    throw new UnsupportedOperationException("This method is not supported in 
DefaultApiVersionManager, use apiVersionResponse(throttleTimeMs) instead")
-  }
+  override def features: Features = metadataCache.features()

Review Comment:
   It will be used in a few follow-on changes. We need to start obtaining 
metadata version from here, and remove all references to the static config.



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