Move HttpServer related classes back to src/main/java

This is needed in order to be able to use Spring Reactive in standalone
applications. These are temporary classes that will return in
src/test/java when Spring Boot support for Reactive applications will
be implemented.

spring-web-reactive/src/main/java/org/springframework/http/server/support/HttpServer.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server;
+package org.springframework.http.server.support;
 
 
 import org.springframework.beans.factory.InitializingBean;

spring-web-reactive/src/main/java/org/springframework/http/server/support/HttpServerSupport.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server;
+package org.springframework.http.server.support;
 
 
 import org.springframework.http.server.ReactiveHttpHandler;

spring-web-reactive/src/main/java/org/springframework/http/server/support/JettyHttpServer.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server;
+package org.springframework.http.server.support;
 
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.server.ServerConnector;

spring-web-reactive/src/main/java/org/springframework/http/server/support/ReactorHttpServer.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server;
+package org.springframework.http.server.support;
 
 import reactor.io.buffer.Buffer;
 import reactor.io.net.ReactiveNet;

spring-web-reactive/src/main/java/org/springframework/http/server/support/RxNettyHttpServer.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server;
+package org.springframework.http.server.support;
 
 import io.netty.buffer.ByteBuf;
 

spring-web-reactive/src/main/java/org/springframework/http/server/support/TomcatHttpServer.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server;
+package org.springframework.http.server.support;
 
 import java.io.File;
 

spring-web-reactive/src/main/java/org/springframework/http/server/support/UndertowHttpServer.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.http.server;
+package org.springframework.http.server.support;
 
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.util.Assert;

spring-web-reactive/src/main/java/org/springframework/http/server/support/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * This package contains temporary interfaces and classes for running embedded servers.
+ * They are expected to be replaced by an upcoming Spring Boot support.
+ */
+package org.springframework.http.server.support;

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

@@ -21,6 +21,12 @@ import org.junit.Before;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 
+import org.springframework.http.server.support.HttpServer;
+import org.springframework.http.server.support.JettyHttpServer;
+import org.springframework.http.server.support.ReactorHttpServer;
+import org.springframework.http.server.support.RxNettyHttpServer;
+import org.springframework.http.server.support.TomcatHttpServer;
+import org.springframework.http.server.support.UndertowHttpServer;
 import org.springframework.util.SocketUtils;