Polishing contribution

Closes gh-28771

spring-web/src/main/java/org/springframework/http/server/ServletServerHttpRequest.java

@@ -56,8 +56,6 @@ import org.springframework.util.StringUtils;
  */
 public class ServletServerHttpRequest implements ServerHttpRequest {
 
-	protected static final String FORM_CONTENT_TYPE = MediaType.APPLICATION_FORM_URLENCODED_VALUE;
-
 	protected static final Charset FORM_CHARSET = StandardCharsets.UTF_8;
 
 
@@ -231,7 +229,7 @@ public class ServletServerHttpRequest implements ServerHttpRequest {
 
 	private static boolean isFormPost(HttpServletRequest request) {
 		String contentType = request.getContentType();
-		return (contentType != null && contentType.contains(FORM_CONTENT_TYPE) &&
+		return (contentType != null && contentType.contains(MediaType.APPLICATION_FORM_URLENCODED_VALUE) &&
 				HttpMethod.POST.matches(request.getMethod()));
 	}
 

spring-web/src/main/java/org/springframework/web/util/ContentCachingRequestWrapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.