BAEL-2302 UPDATED Spring Data REST HTTP Method customization example (#5594)

* BAEL-2302 Spring Data REST HTTP Method customization example

* BAEL-2302 Spring Data REST - granular HTTP Methods control

* BAEL-2302 Spring Data REST - fixed parent pom file version error

* BAEL-2302 Fixing thymeleaf dependencies

* BAEL-2302 Spring Data REST - fixed netty bootstrap

* BAEL-2302 Spring Data REST - fixed netty test

* BAEL-2302 Spring Data REST - fixed spring security oauth2

* BAEL-2302 - Fix oauth2 server deps

spring-5-reactive/src/test/java/com/baeldung/reactive/Spring5ReactiveServerClientIntegrationTest.java

@@ -1,5 +1,6 @@
 package com.baeldung.reactive;
 
+import com.baeldung.web.reactive.Task;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.springframework.http.server.reactive.HttpHandler;
@@ -7,13 +8,10 @@ import org.springframework.http.server.reactive.ReactorHttpHandlerAdapter;
 import org.springframework.web.reactive.function.server.RouterFunction;
 import org.springframework.web.reactive.function.server.RouterFunctions;
 import org.springframework.web.reactive.function.server.ServerResponse;
-
-import com.baeldung.web.reactive.Task;
-
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.ipc.netty.NettyContext;
-import reactor.ipc.netty.http.server.HttpServer;
+import reactor.netty.DisposableServer;
+import reactor.netty.http.server.HttpServer;
 
 import java.time.Duration;
 
@@ -21,12 +19,11 @@ import static org.springframework.web.reactive.function.server.RequestPredicates
 import static org.springframework.web.reactive.function.server.RequestPredicates.POST;
 
 public class Spring5ReactiveServerClientIntegrationTest {
-
-    private static NettyContext nettyContext;
+    private static DisposableServer nettyServer;
 
     @BeforeAll
     public static void setUp() throws Exception {
-        HttpServer server = HttpServer.create("localhost", 8080);
+        HttpServer server = HttpServer.create().host("localhost").port(8080);
         RouterFunction<?> route = RouterFunctions.route(POST("/task/process"), request -> ServerResponse.ok()
             .body(request.bodyToFlux(Task.class)
                 .map(ll -> new Task("TaskName", 1)), Task.class))
@@ -34,13 +31,12 @@ public class Spring5ReactiveServerClientIntegrationTest {
                 .body(Mono.just("server is alive"), String.class)));
         HttpHandler httpHandler = RouterFunctions.toHttpHandler(route);
         ReactorHttpHandlerAdapter adapter = new ReactorHttpHandlerAdapter(httpHandler);
-        nettyContext = server.newHandler(adapter)
-            .block();
+        nettyServer = server.handle(adapter).bind().block();
     }
 
     @AfterAll
     public static void shutDown() {
-        nettyContext.dispose();
+        nettyServer.dispose();
     }
 
     // @Test