Separate out web.server from http.server.reactive

This change separates out lower-level HTTP adapter code from the more
(framework-specific) HTTP processing into a separate package under
org.springframework.web.server (not under org.springframework.http).

spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerErrorTests.java

@@ -37,11 +37,11 @@ import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.web.ResponseStatusException;
-import org.springframework.http.server.reactive.ErrorHandlingHttpHandler;
-import org.springframework.http.server.reactive.FilterChainHttpHandler;
-import org.springframework.http.server.reactive.HttpExceptionHandler;
-import org.springframework.http.server.reactive.HttpFilter;
-import org.springframework.http.server.reactive.HttpFilterChain;
+import org.springframework.web.server.ErrorHandlingHttpHandler;
+import org.springframework.web.server.FilterChainHttpHandler;
+import org.springframework.web.server.HttpExceptionHandler;
+import org.springframework.web.server.HttpFilter;
+import org.springframework.web.server.HttpFilterChain;
 import org.springframework.http.server.reactive.HttpHandler;
 import org.springframework.http.server.reactive.MockServerHttpRequest;
 import org.springframework.http.server.reactive.MockServerHttpResponse;

spring-web-reactive/src/test/java/org/springframework/web/reactive/handler/SimpleUrlHandlerMappingIntegrationTests.java

@@ -31,7 +31,7 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.RequestEntity;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.server.reactive.AbstractHttpHandlerIntegrationTests;
-import org.springframework.http.server.reactive.ErrorHandlingHttpHandler;
+import org.springframework.web.server.ErrorHandlingHttpHandler;
 import org.springframework.http.server.reactive.HttpHandler;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.http.server.reactive.ServerHttpResponse;

spring-web-reactive/src/test/java/org/springframework/web/server/ErrorHandlingHttpHandlerTests.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.http.server.reactive;
+package org.springframework.web.server;
 
 
 import java.net.URI;
@@ -27,6 +27,14 @@ import reactor.rx.stream.Signal;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.server.reactive.HttpHandler;
+import org.springframework.http.server.reactive.MockServerHttpRequest;
+import org.springframework.http.server.reactive.MockServerHttpResponse;
+import org.springframework.http.server.reactive.ServerHttpRequest;
+import org.springframework.http.server.reactive.ServerHttpResponse;
+import org.springframework.web.server.ErrorHandlingHttpHandler;
+import org.springframework.web.server.HttpExceptionHandler;
+import org.springframework.web.server.InternalServerErrorExceptionHandler;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;

spring-web-reactive/src/test/java/org/springframework/web/server/FilterChainHttpHandlerTests.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.http.server.reactive;
+package org.springframework.web.server;
 
 
 import org.apache.commons.logging.Log;
@@ -22,6 +22,10 @@ import org.junit.Before;
 import org.junit.Test;
 import reactor.Mono;
 
+import org.springframework.http.server.reactive.HttpHandler;
+import org.springframework.http.server.reactive.ServerHttpRequest;
+import org.springframework.http.server.reactive.ServerHttpResponse;
+
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;