diff --git a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/FilterChainHttpHandler.java b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/FilterChainHttpHandler.java
index 746807b9a72..729f5dd36be 100644
--- a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/FilterChainHttpHandler.java
+++ b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/FilterChainHttpHandler.java
@@ -24,8 +24,8 @@ import org.reactivestreams.Publisher;
 import org.springframework.util.Assert;
 
 /**
- * An {@link HttpHandler} decorator that delegates to a list of
- * {@link HttpFilter}s and the target {@link HttpHandler}.
+ * {@link HttpHandler} that delegates to a chain of {@link HttpFilter}s followed
+ * by a target {@link HttpHandler}.
  *
  * @author Rossen Stoyanchev
  */
diff --git a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilter.java b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilter.java
index 9e9d5fd500a..525fb4d6251 100644
--- a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilter.java
+++ b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilter.java
@@ -19,11 +19,27 @@ package org.springframework.http.server.reactive;
 import org.reactivestreams.Publisher;
 
 /**
+ * Contract for interception-style, chained processing of HTTP requests.
+ *
+ * <p>Filters may be used to implement cross-cutting, application-agnostic
+ * requirements such as security, timeouts, and others.
+ *
+ * <p>{@link FilterChainHttpHandler} provides a way of constructing a chain of
+ * {@link HttpFilter}s followed by a target {@link HttpHandler}.
+ *
  * @author Rossen Stoyanchev
+ * @see FilterChainHttpHandler
  */
 public interface HttpFilter {
 
-
+	/**
+	 * Process the given request and optionally delegate to the next HttpFilter.
+	 *
+	 * @param request current HTTP request.
+	 * @param response current HTTP response.
+	 * @param chain provides a way to delegate to the next HttpFilter.
+	 * @return Publisher to indicate when request processing is complete.
+	 */
 	Publisher<Void> filter(ServerHttpRequest request, ServerHttpResponse response,
 			HttpFilterChain chain);
 
diff --git a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilterChain.java b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilterChain.java
index 1c15d907917..a18a644f2db 100644
--- a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilterChain.java
+++ b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpFilterChain.java
@@ -19,10 +19,19 @@ import org.reactivestreams.Publisher;
 
 
 /**
+ * Represents a chain of {@link HttpFilter}s allowing each {@link HttpFilter} to
+ * delegate to the next in the chain.
+ *
  * @author Rossen Stoyanchev
  */
 public interface HttpFilterChain {
 
+	/**
+	 *
+	 * @param request current HTTP request.
+	 * @param response current HTTP response.
+	 * @return Publisher to indicate when request handling is complete.
+	 */
 	Publisher<Void> filter(ServerHttpRequest request, ServerHttpResponse response);
 
 }
diff --git a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpHandler.java b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpHandler.java
index f11cc13a2d4..ab0e93197a6 100644
--- a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpHandler.java
+++ b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/HttpHandler.java
@@ -19,29 +19,21 @@ package org.springframework.http.server.reactive;
 import org.reactivestreams.Publisher;
 
 /**
- * Interface for handlers that process HTTP requests and generate an HTTP response.
- * This handler is designed to be called when the HTTP headers have been received, making
- * the HTTP request body available as stream. The HTTP response body can also be written
- * as a stream.
+ * Contract for handling HTTP requests in a non-blocking way.
  *
  * @author Arjen Poutsma
  * @author Rossen Stoyanchev
  * @author Sebastien Deleuze
- * @see ServerHttpRequest#getBody()
- * @see ServerHttpResponse#setBody(Publisher)
+ * @see HttpFilter
  */
 public interface HttpHandler {
 
 	/**
-	 * Process the given request, generating a response in an asynchronous non blocking way.
-	 * Implementations should not throw exceptions but signal them via the returned
-	 * {@code Publisher<Void>}.
+	 * Handle the given request and generate a response.
 	 *
-	 * @param request current HTTP request, the body can be processed as a data stream.
-	 * @param response current HTTP response, the body can be provided as a data stream.
-	 * @return A {@code Publisher<Void>} used to signal the demand, and receive a notification
-	 * when the handling is complete (success or error) including the flush of the data on the
-	 * network.
+	 * @param request current HTTP request.
+	 * @param response current HTTP response.
+	 * @return Publisher to indicate when request handling is complete.
 	 */
 	Publisher<Void> handle(ServerHttpRequest request, ServerHttpResponse response);