Addressing PR review.

Signed-off-by: Sanghyeok An <[email protected]>

Author: chickenchickenlove

spring-kafka-docs/src/main/antora/modules/ROOT/pages/kafka/receiving-messages/message-listener-container.adoc

@@ -24,7 +24,26 @@ The `CompositeRecordInterceptor` and `CompositeBatchInterceptor` can be used to
 
 Starting with version 4.0, `AbstractMessageListenerContainer` exposes `getRecordInterceptor()` as a public method.
 If the returned interceptor is an instance of `CompositeRecordInterceptor`, additional `RecordInterceptor` instances can be added to it even after the container instance extending `AbstractMessageListenerContainer` has been created and a `RecordInterceptor` has already been configured.
+The following example shows how to do so:
+
+[source, java]
+----
+public void configureRecordInterceptor(KafkaMessageListenerContainer<Integer, String> container) {
+    CompositeRecordInterceptor compositeInterceptor;
 
+    if (container.getRecordInterceptor() instanceof CompositeRecordInterceptor interceptor) {
+        compositeInterceptor = interceptor;
+    } else {
+        compositeInterceptor = new CompositeRecordInterceptor<>();
+    }
+
+    RecordInterceptor<Integer, String> recordInterceptor1 = new RecordInterceptor() {...};
+    RecordInterceptor<Integer, String> recordInterceptor2 = new RecordInterceptor() {...};
+
+    compositeInterceptor.addRecordInterceptor(recordInterceptor1);
+    compositeInterceptor.addRecordInterceptor(recordInterceptor2);
+}
+----
 
 By default, starting with version 2.8, when using transactions, the interceptor is invoked before the transaction has started.
 You can set the listener container's `interceptBeforeTx` property to `false` to invoke the interceptor after the transaction has started instead.

spring-kafka-docs/src/main/antora/modules/ROOT/pages/whats-new.adoc

@@ -80,6 +80,5 @@ More details are available in xref:kafka/headers.adoc#multi-value-header[Support
 [[x40-add-record-interceptor]]
 === Configure additional `RecordInterceptor`
 
-The `KafkaMessageListenerContainer` and `ConcurrentMessageListenerContainer` support `getRecordInterceptor()`.
-If the returned interceptor is an instance of `CompositeRecordInterceptor`, additional `RecordInterceptor` instances can be added to it.
-More details are available in xref:kafka/receiving-messages/message-listener-container.adoc#message-listener-container[Message Listener Containers].
+Listener containers now support interceptor customization via `getRecordInterceptor()`.
+See the xref:kafka/receiving-messages/message-listener-container.adoc#message-listener-container[Message Listener Containers] section for details.