diff --git a/spring-web/src/main/java/org/springframework/http/server/ServletServerHttpRequest.java b/spring-web/src/main/java/org/springframework/http/server/ServletServerHttpRequest.java
index 6993a840be..2712de7eb4 100644
--- a/spring-web/src/main/java/org/springframework/http/server/ServletServerHttpRequest.java
+++ b/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 = "application/x-www-form-urlencoded";
-
 	protected static final Charset FORM_CHARSET = StandardCharsets.UTF_8;
 
 
@@ -230,7 +228,7 @@ 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()));
 	}
 
diff --git a/spring-web/src/main/java/org/springframework/web/util/ContentCachingRequestWrapper.java b/spring-web/src/main/java/org/springframework/web/util/ContentCachingRequestWrapper.java
index 6b2bb021a8..29b93e01a8 100644
--- a/spring-web/src/main/java/org/springframework/web/util/ContentCachingRequestWrapper.java
+++ b/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.
@@ -33,6 +33,7 @@ import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletRequestWrapper;
 
 import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
 import org.springframework.lang.Nullable;
 
 /**
@@ -54,9 +55,6 @@ import org.springframework.lang.Nullable;
  */
 public class ContentCachingRequestWrapper extends HttpServletRequestWrapper {
 
-	private static final String FORM_CONTENT_TYPE = "application/x-www-form-urlencoded";
-
-
 	private final ByteArrayOutputStream cachedContent;
 
 	@Nullable
@@ -151,7 +149,7 @@ public class ContentCachingRequestWrapper extends HttpServletRequestWrapper {
 
 	private boolean isFormPost() {
 		String contentType = getContentType();
-		return (contentType != null && contentType.contains(FORM_CONTENT_TYPE) &&
+		return (contentType != null && contentType.contains(MediaType.APPLICATION_FORM_URLENCODED_VALUE) &&
 				HttpMethod.POST.matches(getMethod()));
 	}
 
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/AbstractListenerWebSocketSession.java b/spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/AbstractListenerWebSocketSession.java
index 98669f781b..551436ca35 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/AbstractListenerWebSocketSession.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/AbstractListenerWebSocketSession.java
@@ -221,7 +221,13 @@ public abstract class AbstractListenerWebSocketSession<T> extends AbstractWebSoc
 			// Ignore result: can't overflow, ok if not first or no one listens
 			this.handlerCompletionSink.tryEmitError(ex);
 		}
-		close(CloseStatus.SERVER_ERROR.withReason(ex.getMessage()));
+		if (logger.isDebugEnabled()) {
+			logger.debug("WebSocket session completed with error", ex);
+		}
+		else if (logger.isInfoEnabled()) {
+			logger.info("WebSocket session completed with error: " + ex.getMessage());
+		}
+		close(CloseStatus.SERVER_ERROR);
 	}
 
 	@Override
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/DispatcherServlet.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/DispatcherServlet.java
index 34b4aedda6..cdc396639c 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/DispatcherServlet.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/DispatcherServlet.java
@@ -49,6 +49,7 @@ import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.support.PropertiesLoaderUtils;
 import org.springframework.core.log.LogFormatUtils;
 import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
 import org.springframework.http.server.RequestPath;
 import org.springframework.http.server.ServletServerHttpRequest;
 import org.springframework.lang.Nullable;
@@ -986,7 +987,7 @@ public class DispatcherServlet extends FrameworkServlet {
 			}
 			else {
 				// Avoid request body parsing for form data
-				params = (StringUtils.startsWithIgnoreCase(contentType, "application/x-www-form-urlencoded") ||
+				params = (StringUtils.startsWithIgnoreCase(contentType, MediaType.APPLICATION_FORM_URLENCODED_VALUE) ||
 						!request.getParameterMap().isEmpty() ? "masked" : "");
 			}