diff --git a/spring-web-reactive/src/main/java/org/springframework/web/ResponseStatusException.java b/spring-web-reactive/src/main/java/org/springframework/web/ResponseStatusException.java
deleted file mode 100644
index 3aa9eac84f4..00000000000
--- a/spring-web-reactive/src/main/java/org/springframework/web/ResponseStatusException.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright 2002-2015 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.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.web;
-
-import org.springframework.core.NestedRuntimeException;
-import org.springframework.http.HttpStatus;
-
-/**
- * Exception wrapper to associate an exception with a status code at runtime.
- *
- * @author Rossen Stoyanchev
- */
-public class ResponseStatusException extends NestedRuntimeException {
-
-	private final HttpStatus httpStatus;
-
-
-	public ResponseStatusException(HttpStatus status) {
-		this(status, null);
-	}
-
-	public ResponseStatusException(HttpStatus status, Throwable cause) {
-		super("Request processing failure with status code: " + status, cause);
-		this.httpStatus = status;
-	}
-
-
-	public HttpStatus getHttpStatus() {
-		return this.httpStatus;
-	}
-
-}
diff --git a/spring-web-reactive/src/main/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapper.java b/spring-web-reactive/src/main/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapper.java
index 07a39d735f7..c1b27fa7919 100644
--- a/spring-web-reactive/src/main/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapper.java
+++ b/spring-web-reactive/src/main/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapper.java
@@ -20,7 +20,7 @@ import java.util.function.Function;
 import org.springframework.core.annotation.AnnotatedElementUtils;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.HttpMediaTypeNotAcceptableException;
-import org.springframework.web.ResponseStatusException;
+import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.bind.annotation.ResponseStatus;
 
 /**
diff --git a/spring-web-reactive/src/main/java/org/springframework/web/reactive/ResponseStatusExceptionHandler.java b/spring-web-reactive/src/main/java/org/springframework/web/reactive/ResponseStatusExceptionHandler.java
index add1da9fdcc..6a931a01a1e 100644
--- a/spring-web-reactive/src/main/java/org/springframework/web/reactive/ResponseStatusExceptionHandler.java
+++ b/spring-web-reactive/src/main/java/org/springframework/web/reactive/ResponseStatusExceptionHandler.java
@@ -17,7 +17,7 @@ package org.springframework.web.reactive;
 
 import reactor.core.publisher.Mono;
 
-import org.springframework.web.ResponseStatusException;
+import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.server.WebExceptionHandler;
 import org.springframework.web.server.ServerWebExchange;
 
@@ -32,7 +32,7 @@ public class ResponseStatusExceptionHandler implements WebExceptionHandler {
 	@Override
 	public Mono<Void> handle(ServerWebExchange exchange, Throwable ex) {
 		if (ex instanceof ResponseStatusException) {
-			exchange.getResponse().setStatusCode(((ResponseStatusException) ex).getHttpStatus());
+			exchange.getResponse().setStatusCode(((ResponseStatusException) ex).getStatus());
 			return Mono.empty();
 		}
 		return Mono.error(ex);
diff --git a/spring-web-reactive/src/main/java/org/springframework/web/server/ResponseStatusException.java b/spring-web-reactive/src/main/java/org/springframework/web/server/ResponseStatusException.java
new file mode 100644
index 00000000000..86cdd15d870
--- /dev/null
+++ b/spring-web-reactive/src/main/java/org/springframework/web/server/ResponseStatusException.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2002-2015 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.web.server;
+
+import org.springframework.core.NestedRuntimeException;
+import org.springframework.http.HttpStatus;
+import org.springframework.util.Assert;
+
+/**
+ * Base class for exceptions associated with specific HTTP response status codes.
+ *
+ * @author Rossen Stoyanchev
+ */
+public class ResponseStatusException extends NestedRuntimeException {
+
+	private final HttpStatus status;
+
+	private final String reason;
+
+
+	/**
+	 * Constructor with a response code and a reason to add to the exception
+	 * message as explanation.
+	 */
+	public ResponseStatusException(HttpStatus status, String reason) {
+		this(status, reason, null);
+	}
+
+	/**
+	 * Constructor with a nested exception.
+	 */
+	public ResponseStatusException(HttpStatus status, String reason, Throwable cause) {
+		super("Request failure [status: " + status + ", reason: \"" + reason + "\"]", cause);
+		Assert.notNull(status, "'status' is required");
+		Assert.notNull(reason, "'reason' is required");
+		this.status = status;
+		this.reason = reason;
+	}
+
+
+	/**
+	 * The HTTP status that fits the exception.
+	 */
+	public HttpStatus getStatus() {
+		return this.status;
+	}
+
+	/**
+	 * The reason explaining the exception.
+	 */
+	public String getReason() {
+		return this.reason;
+	}
+
+}
diff --git a/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerErrorTests.java b/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerErrorTests.java
index 99b99b004b5..cd5dce7650a 100644
--- a/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerErrorTests.java
+++ b/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerErrorTests.java
@@ -42,7 +42,7 @@ import org.springframework.http.server.reactive.MockServerHttpRequest;
 import org.springframework.http.server.reactive.MockServerHttpResponse;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.HttpMediaTypeNotAcceptableException;
-import org.springframework.web.ResponseStatusException;
+import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
diff --git a/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapperTests.java b/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapperTests.java
index 4fd4b152b49..8c4ede4ab6d 100644
--- a/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapperTests.java
+++ b/spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerExceptionMapperTests.java
@@ -22,7 +22,7 @@ import org.junit.Test;
 
 import org.springframework.http.HttpStatus;
 import org.springframework.web.HttpMediaTypeNotAcceptableException;
-import org.springframework.web.ResponseStatusException;
+import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.bind.annotation.ResponseStatus;
 
 import static org.junit.Assert.assertEquals;
@@ -47,7 +47,7 @@ public class DispatcherHandlerExceptionMapperTests {
 		ex = this.mapper.apply(ex);
 
 		assertEquals(ResponseStatusException.class, ex.getClass());
-		assertEquals(HttpStatus.NOT_FOUND, ((ResponseStatusException) ex).getHttpStatus());
+		assertEquals(HttpStatus.NOT_FOUND, ((ResponseStatusException) ex).getStatus());
 	}
 
 
@@ -57,7 +57,7 @@ public class DispatcherHandlerExceptionMapperTests {
 		ex = this.mapper.apply(ex);
 
 		assertEquals(ResponseStatusException.class, ex.getClass());
-		assertEquals(HttpStatus.NOT_ACCEPTABLE, ((ResponseStatusException) ex).getHttpStatus());
+		assertEquals(HttpStatus.NOT_ACCEPTABLE, ((ResponseStatusException) ex).getStatus());
 	}
 
 	@Test
@@ -66,7 +66,7 @@ public class DispatcherHandlerExceptionMapperTests {
 		ex = this.mapper.apply(ex);
 
 		assertEquals(ResponseStatusException.class, ex.getClass());
-		assertEquals(HttpStatus.BAD_REQUEST, ((ResponseStatusException) ex).getHttpStatus());
+		assertEquals(HttpStatus.BAD_REQUEST, ((ResponseStatusException) ex).getStatus());
 	}
 
 	@Test
@@ -75,7 +75,7 @@ public class DispatcherHandlerExceptionMapperTests {
 		ex = this.mapper.apply(ex);
 
 		assertEquals(ResponseStatusException.class, ex.getClass());
-		assertEquals(HttpStatus.BAD_REQUEST, ((ResponseStatusException) ex).getHttpStatus());
+		assertEquals(HttpStatus.BAD_REQUEST, ((ResponseStatusException) ex).getStatus());
 	}
 
 
diff --git a/spring-web-reactive/src/test/java/org/springframework/web/reactive/ResponseStatusExceptionHandlerTests.java b/spring-web-reactive/src/test/java/org/springframework/web/reactive/ResponseStatusExceptionHandlerTests.java
index 37866c5311d..c5b85760a73 100644
--- a/spring-web-reactive/src/test/java/org/springframework/web/reactive/ResponseStatusExceptionHandlerTests.java
+++ b/spring-web-reactive/src/test/java/org/springframework/web/reactive/ResponseStatusExceptionHandlerTests.java
@@ -26,7 +26,7 @@ import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.server.reactive.MockServerHttpRequest;
 import org.springframework.http.server.reactive.MockServerHttpResponse;
-import org.springframework.web.ResponseStatusException;
+import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.server.adapter.DefaultServerWebExchange;
 import org.springframework.web.server.session.WebSessionManager;