diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java
index de47e48a027..6006f400b7e 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java
@@ -671,7 +671,7 @@ protected boolean isInvalidPath(String path) {
 	 * Called for GET requests as well as HEAD requests.
 	 * @param response current servlet response
 	 * @param resource the identified resource (never {@code null})
-	 * @param mediaType the resource's media type (never {@code null})
+	 * @param mediaType the resource's media type
 	 * @throws IOException in case of errors while setting the headers
 	 */
 	protected void setHeaders(HttpServletResponse response, Resource resource, @Nullable MediaType mediaType)