Remove outdated HandlerAdapter references from annotation javadoc

Includes removal of PathVariable's MultiValueMap support claim.

Issue: SPR-16936

spring-web/src/main/java/org/springframework/web/bind/annotation/PathVariable.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -29,8 +29,7 @@ import org.springframework.core.annotation.AliasFor;
  * variable. Supported for {@link RequestMapping} annotated handler methods in Servlet
  * environments.
  *
- * <p>If the method parameter is {@link java.util.Map Map&lt;String, String&gt;} or
+ * <p>If the method parameter is {@link java.util.Map Map&lt;String, String&gt;}
- * {@link org.springframework.util.MultiValueMap MultiValueMap&lt;String, String&gt;}
  * then the map is populated with all path variable names and values.
  *
  * @author Arjen Poutsma
@@ -38,7 +37,6 @@ import org.springframework.core.annotation.AliasFor;
  * @since 3.0
  * @see RequestMapping
  * @see org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter
- * @see org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter
  */
 @Target(ElementType.PARAMETER)
 @Retention(RetentionPolicy.RUNTIME)

spring-web/src/main/java/org/springframework/web/bind/annotation/RequestBody.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -37,7 +37,6 @@ import org.springframework.http.converter.HttpMessageConverter;
  * @see RequestHeader
  * @see ResponseBody
  * @see org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter
- * @see org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter
  */
 @Target(ElementType.PARAMETER)
 @Retention(RetentionPolicy.RUNTIME)

spring-web/src/main/java/org/springframework/web/bind/annotation/RequestMapping.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -329,9 +329,9 @@ public @interface RequestMapping {
 	/**
 	 * In a Servlet environment only: the path mapping URIs (e.g. "/myPath.do").
 	 * Ant-style path patterns are also supported (e.g. "/myPath/*.do").
-	 * At the method level, relative paths (e.g. "edit.do") are supported within
+	 * At the method level, relative paths (e.g. "edit.do") are supported
-	 * the primary mapping expressed at the type level. Path mapping URIs may
+	 * within the primary mapping expressed at the type level.
-	 * contain placeholders (e.g. "/${connect}")
+	 * Path mapping URIs may contain placeholders (e.g. "/${connect}").
 	 * <p><b>Supported at the type level as well as at the method level!</b>
 	 * When used at the type level, all method-level mappings inherit
 	 * this primary mapping, narrowing it for a specific handler method.