diff --git a/spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/RequestResponseBodyMethodProcessorTests.java b/spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/RequestResponseBodyMethodProcessorTests.java
index bff70afdd95..d03022635a9 100644
--- a/spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/RequestResponseBodyMethodProcessorTests.java
+++ b/spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/RequestResponseBodyMethodProcessorTests.java
@@ -901,7 +901,7 @@ public class RequestResponseBodyMethodProcessorTests {
 	}
 
 
-	@SuppressWarnings("NotNullFieldNotInitialized")
+	@SuppressWarnings({"serial", "NotNullFieldNotInitialized"})
 	private static class SimpleBean implements Identifiable {
 
 		private Long id;