diff --git a/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/HandlerMethodReturnValueHandlerComposite.java b/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/HandlerMethodReturnValueHandlerComposite.java
index 08569163e31..c9347256b0e 100644
--- a/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/HandlerMethodReturnValueHandlerComposite.java
+++ b/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/HandlerMethodReturnValueHandlerComposite.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -38,7 +38,6 @@ public class HandlerMethodReturnValueHandlerComposite implements HandlerMethodRe
 
 	protected final Log logger = LogFactory.getLog(getClass());
 
-
 	private final List<HandlerMethodReturnValueHandler> returnValueHandlers = new ArrayList<>();
 
 
diff --git a/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/InvocableHelper.java b/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/InvocableHelper.java
index d4ba44d4a4d..411a295bf58 100644
--- a/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/InvocableHelper.java
+++ b/spring-messaging/src/main/java/org/springframework/messaging/handler/invocation/reactive/InvocableHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -46,7 +46,7 @@ import org.springframework.util.Assert;
  */
 class InvocableHelper {
 
-	private static Log logger = LogFactory.getLog(InvocableHelper.class);
+	private static final Log logger = LogFactory.getLog(InvocableHelper.class);
 
 
 	private final HandlerMethodArgumentResolverComposite argumentResolvers =
diff --git a/spring-web/src/main/java/org/springframework/web/method/support/InvocableHandlerMethod.java b/spring-web/src/main/java/org/springframework/web/method/support/InvocableHandlerMethod.java
index e5c71b44f36..817a4f29351 100644
--- a/spring-web/src/main/java/org/springframework/web/method/support/InvocableHandlerMethod.java
+++ b/spring-web/src/main/java/org/springframework/web/method/support/InvocableHandlerMethod.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -46,13 +46,13 @@ public class InvocableHandlerMethod extends HandlerMethod {
 	private static final Object[] EMPTY_ARGS = new Object[0];
 
 
-	@Nullable
-	private WebDataBinderFactory dataBinderFactory;
-
 	private HandlerMethodArgumentResolverComposite resolvers = new HandlerMethodArgumentResolverComposite();
 
 	private ParameterNameDiscoverer parameterNameDiscoverer = new DefaultParameterNameDiscoverer();
 
+	@Nullable
+	private WebDataBinderFactory dataBinderFactory;
+
 
 	/**
 	 * Create an instance from a {@code HandlerMethod}.
@@ -83,16 +83,8 @@ public class InvocableHandlerMethod extends HandlerMethod {
 
 
 	/**
-	 * Set the {@link WebDataBinderFactory} to be passed to argument resolvers allowing them to create
-	 * a {@link WebDataBinder} for data binding and type conversion purposes.
-	 * @param dataBinderFactory the data binder factory.
-	 */
-	public void setDataBinderFactory(WebDataBinderFactory dataBinderFactory) {
-		this.dataBinderFactory = dataBinderFactory;
-	}
-
-	/**
-	 * Set {@link HandlerMethodArgumentResolver HandlerMethodArgumentResolvers} to use to use for resolving method argument values.
+	 * Set {@link HandlerMethodArgumentResolver HandlerMethodArgumentResolvers}
+	 * to use for resolving method argument values.
 	 */
 	public void setHandlerMethodArgumentResolvers(HandlerMethodArgumentResolverComposite argumentResolvers) {
 		this.resolvers = argumentResolvers;
@@ -107,6 +99,14 @@ public class InvocableHandlerMethod extends HandlerMethod {
 		this.parameterNameDiscoverer = parameterNameDiscoverer;
 	}
 
+	/**
+	 * Set the {@link WebDataBinderFactory} to be passed to argument resolvers allowing them
+	 * to create a {@link WebDataBinder} for data binding and type conversion purposes.
+	 */
+	public void setDataBinderFactory(WebDataBinderFactory dataBinderFactory) {
+		this.dataBinderFactory = dataBinderFactory;
+	}
+
 
 	/**
 	 * Invoke the method after resolving its argument values in the context of the given request.
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/InvocableHandlerMethod.java b/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/InvocableHandlerMethod.java
index c419fb491ed..cc3c5841ba8 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/InvocableHandlerMethod.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/InvocableHandlerMethod.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -60,7 +60,7 @@ public class InvocableHandlerMethod extends HandlerMethod {
 	private static final Object NO_ARG_VALUE = new Object();
 
 
-	private HandlerMethodArgumentResolverComposite resolvers = new HandlerMethodArgumentResolverComposite();
+	private final HandlerMethodArgumentResolverComposite resolvers = new HandlerMethodArgumentResolverComposite();
 
 	private ParameterNameDiscoverer parameterNameDiscoverer = new DefaultParameterNameDiscoverer();
 
@@ -139,8 +139,9 @@ public class InvocableHandlerMethod extends HandlerMethod {
 			try {
 				ReflectionUtils.makeAccessible(getBridgedMethod());
 				Method method = getBridgedMethod();
-				if (KotlinDetector.isKotlinReflectPresent() && KotlinDetector.isKotlinType(method.getDeclaringClass())
-						&& CoroutinesUtils.isSuspendingFunction(method)) {
+				if (KotlinDetector.isKotlinReflectPresent() &&
+						KotlinDetector.isKotlinType(method.getDeclaringClass()) &&
+						CoroutinesUtils.isSuspendingFunction(method)) {
 					value = CoroutinesUtils.invokeSuspendingFunction(method, getBean(), args);
 				}
 				else {