Improve javadoc on reactive classes

Ensure type-level Javadoc in every class, comply with guidelines for
80 char on Javadoc, and minor polish.

spring-web-reactive/src/main/java/org/springframework/web/reactive/accept/MappingContentTypeResolver.java

@@ -21,8 +21,8 @@ import java.util.Set;
 import org.springframework.http.MediaType;
 
 /**
- * An extension of {@link RequestedContentTypeResolver} that maintains a mapping between
- * keys (e.g. file extension, query parameter) and media types.
+ * An extension of {@link RequestedContentTypeResolver} that maintains a mapping
+ * between keys (e.g. file extension, query parameter) and media types.
  *
  * @author Rossen Stoyanchev
  * @since 5.0

spring-web-reactive/src/main/java/org/springframework/web/reactive/accept/ParameterContentTypeResolver.java

@@ -27,8 +27,8 @@ import org.springframework.web.server.NotAcceptableStatusException;
 import org.springframework.web.server.ServerWebExchange;
 
 /**
- * A {@link RequestedContentTypeResolver} that extracts the media type lookup key from a
- * known query parameter named "format" by default.
+ * A {@link RequestedContentTypeResolver} that extracts the media type lookup
+ * key from a known query parameter named "format" by default.
  *
  * @author Rossen Stoyanchev
  * @since 5.0

spring-web-reactive/src/main/java/org/springframework/web/reactive/accept/PathExtensionContentTypeResolver.java

@@ -31,8 +31,8 @@ import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.util.WebUtils;
 
 /**
- * A {@link RequestedContentTypeResolver} that extracts the file extension from the
- * request path and uses that as the media type lookup key.
+ * A {@link RequestedContentTypeResolver} that extracts the file extension from
+ * the request path and uses that as the media type lookup key.
  *
  * <p>If the file extension is not found in the explicit registrations provided
  * to the constructor, the Java Activation Framework (JAF) is used as a fallback

spring-web-reactive/src/main/java/org/springframework/web/reactive/accept/RequestedContentTypeResolver.java

@@ -22,7 +22,8 @@ import org.springframework.web.server.NotAcceptableStatusException;
 import org.springframework.web.server.ServerWebExchange;
 
 /**
- * Strategy for resolving the requested media types for a {@code ServerWebExchange}.
+ * Strategy for resolving the requested media types for a
+ * {@code ServerWebExchange}.
  *
  * @author Rossen Stoyanchev
  * @since 5.0

spring-web-reactive/src/main/java/org/springframework/web/reactive/accept/RequestedContentTypeResolverBuilder.java

@@ -28,9 +28,9 @@ import org.springframework.util.CollectionUtils;
 
 /**
  * Factory to create a {@link CompositeContentTypeResolver} and configure it with
- * one or more {@link RequestedContentTypeResolver} instances with build style methods.
- * The following table shows methods, resulting strategy instances, and if in
- * use by default:
+ * one or more {@link RequestedContentTypeResolver} instances with build style
+ * methods. The following table shows methods, resulting strategy instances, and
+ * if in use by default:
  *
  * <table>
  * <tr>
@@ -65,9 +65,10 @@ import org.springframework.util.CollectionUtils;
  * </tr>
  * </table>
  *
- * <p>The order in which resolvers are configured is fixed. Config methods may only
- * turn individual resolvers on or off. If you need a custom order for any
- * reason simply instantiate {@code {@link CompositeContentTypeResolver}} directly.
+ * <p>The order in which resolvers are configured is fixed. Config methods may
+ * only turn individual resolvers on or off. If you need a custom order for any
+ * reason simply instantiate {@code {@link CompositeContentTypeResolver}}
+ * directly.
  *
  * <p>For the path extension and parameter resolvers you may explicitly add
  * {@link #mediaTypes(Map)}. This will be used to resolve path extensions or a

spring-web-reactive/src/main/java/org/springframework/web/reactive/result/method/InvocableHandlerMethod.java

@@ -40,6 +40,9 @@ import org.springframework.web.server.ServerWebExchange;
 
 
 /**
+ * Extension of HandlerMethod that can invoke the target method after resolving
+ * its method arguments.
+ *
  * @author Rossen Stoyanchev
  * @since 5.0
  */

spring-web-reactive/src/main/java/org/springframework/web/reactive/result/view/AbstractView.java

@@ -34,6 +34,7 @@ import org.springframework.web.reactive.HandlerResult;
 import org.springframework.web.server.ServerWebExchange;
 
 /**
+ * Base class for {@link View} implementations.
  *
  * @author Rossen Stoyanchev
  * @since 5.0