Migration of the following modules:

* spring-5-mvc
* spring-5-reactive

spring-5-mvc/pom.xml

@@ -11,9 +11,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2.0-temp</artifactId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../parent-boot-2.0-temp</relativePath>
+        <relativePath>../parent-boot-2</relativePath>
         <!-- lookup parent from repository -->
     </parent>
 

spring-5-mvc/src/main/java/com/baeldung/Spring5Application.java

@@ -4,10 +4,11 @@ import javax.servlet.Filter;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
 import org.springframework.web.filter.DelegatingFilterProxy;
 import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
 
-@SpringBootApplication
+@SpringBootApplication( exclude = SecurityAutoConfiguration.class)
 public class Spring5Application {
 
     public static void main(String[] args) {

spring-5-mvc/src/main/kotlin/com/baeldung/springbootkotlin/KotlinDemoApplication.kt

@@ -2,8 +2,9 @@ package com.baeldung.springbootkotlin
 
 import org.springframework.boot.SpringApplication
 import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration
 
-@SpringBootApplication(scanBasePackages = arrayOf("com.baeldung.springbootkotlin"))
+@SpringBootApplication(scanBasePackages = arrayOf("com.baeldung.springbootkotlin"), exclude = arrayOf(SecurityAutoConfiguration::class))
 class KotlinDemoApplication
 
 fun main(args: Array<String>) {

spring-5-reactive/pom.xml

@@ -12,9 +12,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2.0-temp</artifactId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../parent-boot-2.0-temp</relativePath>
+        <relativePath>../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
@@ -75,6 +75,11 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
          <!-- Spring WebFlux WebSession -->
         <dependency>
@@ -116,12 +121,6 @@
             <version>${project-reactor-test}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-runner</artifactId>
-            <version>${junit.platform.version}</version>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <build>
@@ -145,7 +144,6 @@
         <geronimo-json_1.1_spec.version>1.0</geronimo-json_1.1_spec.version>
         <commons-collections4.version>4.1</commons-collections4.version>
         <project-reactor-test>3.1.6.RELEASE</project-reactor-test>
-        <junit.platform.version>1.2.0</junit.platform.version>
     </properties>
 
 </project>

spring-5-reactive/src/main/java/com/baeldung/debugging/consumer/ConsumerDebuggingApplication.java

@@ -14,17 +14,17 @@ import reactor.core.publisher.Hooks;
 
 @SpringBootApplication(exclude = MongoReactiveAutoConfiguration.class)
 @EnableScheduling
-public class ConsumerSSEApplication {
+public class ConsumerDebuggingApplication {
 
     public static void main(String[] args) {
         Hooks.onOperatorDebug();
-        SpringApplication app = new SpringApplication(ConsumerSSEApplication.class);
+        SpringApplication app = new SpringApplication(ConsumerDebuggingApplication.class);
         app.setDefaultProperties(Collections.singletonMap("server.port", "8082"));
         app.run(args);
     }
 
     @Bean
-    public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
+    public SecurityWebFilterChain debuggingConsumerSpringSecurityFilterChain(ServerHttpSecurity http) {
         http.authorizeExchange()
             .anyExchange()
             .permitAll();

spring-5-reactive/src/main/java/com/baeldung/debugging/server/ServerDebuggingApplication.java

@@ -11,16 +11,16 @@ import org.springframework.web.reactive.config.EnableWebFlux;
 
 @EnableWebFlux
 @SpringBootApplication
-public class ServerSSEApplication {
+public class ServerDebuggingApplication {
     
     public static void main(String[] args) {
-        SpringApplication app = new SpringApplication(ServerSSEApplication.class);
+        SpringApplication app = new SpringApplication(ServerDebuggingApplication.class);
         app.setDefaultProperties(Collections.singletonMap("server.port", "8081"));
         app.run(args);
     }
     
     @Bean
-    public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
+    public SecurityWebFilterChain debuggingServerSpringSecurityFilterChain(ServerHttpSecurity http) {
         http.authorizeExchange()
             .anyExchange()
             .permitAll();

spring-5-reactive/src/main/java/com/baeldung/functional/FunctionalSpringBootApplication.java

@@ -17,8 +17,6 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.web.servlet.ServletRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.Profile;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.http.server.reactive.HttpHandler;
 import org.springframework.web.reactive.function.server.RouterFunction;
@@ -40,11 +38,14 @@ public class FunctionalSpringBootApplication {
     private RouterFunction<ServerResponse> routingFunction() {
         FormHandler formHandler = new FormHandler();
 
-        RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
+        RouterFunction<ServerResponse> restfulRouter = route(GET("/"),
-            .doOnNext(actors::add)
+            serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"),
-            .then(ok().build()));
+                serverRequest -> serverRequest.bodyToMono(Actor.class)
+                    .doOnNext(actors::add)
+                    .then(ok().build()));
 
-        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), formHandler::handleLogin)
+        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld")))
+            .andRoute(POST("/login"), formHandler::handleLogin)
             .andRoute(POST("/upload"), formHandler::handleUpload)
             .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
             .andNest(path("/actor"), restfulRouter)
@@ -68,5 +69,4 @@ public class FunctionalSpringBootApplication {
     public static void main(String[] args) {
         SpringApplication.run(FunctionalSpringBootApplication.class, args);
     }
-
 }

spring-5-reactive/src/main/java/com/baeldung/reactive/Spring5ReactiveApplication.java

@@ -1,9 +1,7 @@
 package com.baeldung.reactive;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.annotation.Bean;
 
 @SpringBootApplication
 public class Spring5ReactiveApplication{

spring-5-reactive/src/main/java/com/baeldung/reactive/cors/annotated/CorsOnAnnotatedElementsApplication.java

@@ -4,6 +4,9 @@ import java.util.Collections;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.config.web.server.ServerHttpSecurity;
+import org.springframework.security.web.server.SecurityWebFilterChain;
 
 @SpringBootApplication
 public class CorsOnAnnotatedElementsApplication {
@@ -14,4 +17,9 @@ public class CorsOnAnnotatedElementsApplication {
         app.run(args);
     }
 
+    @Bean
+    public SecurityWebFilterChain corsAnnotatedSpringSecurityFilterChain(ServerHttpSecurity http) {
+        http.csrf().disable();
+        return http.build();
+    }
 }

spring-5-reactive/src/main/java/com/baeldung/reactive/cors/global/CorsGlobalConfigApplication.java

@@ -8,6 +8,9 @@ import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfigurat
 import org.springframework.boot.autoconfigure.data.mongo.MongoReactiveDataAutoConfiguration;
 import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
 import org.springframework.boot.autoconfigure.mongo.MongoReactiveAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.config.web.server.ServerHttpSecurity;
+import org.springframework.security.web.server.SecurityWebFilterChain;
 
 @SpringBootApplication(exclude = { MongoAutoConfiguration.class,
         MongoDataAutoConfiguration.class,
@@ -22,4 +25,9 @@ public class CorsGlobalConfigApplication {
         app.run(args);
     }
 
+    @Bean
+    public SecurityWebFilterChain corsGlobalSpringSecurityFilterChain(ServerHttpSecurity http) {
+        http.csrf().disable();
+        return http.build();
+    }
 }

spring-5-reactive/src/main/java/com/baeldung/reactive/cors/global/functional/handlers/CorsGlobalFunctionalHandler.java

@@ -7,7 +7,7 @@ import org.springframework.web.reactive.function.server.ServerResponse;
 import reactor.core.publisher.Mono;
 
 @Component
-public class FunctionalHandler {
+public class CorsGlobalFunctionalHandler {
 
     public Mono<ServerResponse> useHandler(final ServerRequest request) {
         final String responseMessage = "CORS GLOBAL CONFIG IS NOT EFFECTIVE ON FUNCTIONAL ENDPOINTS!!!";

spring-5-reactive/src/main/java/com/baeldung/reactive/cors/global/functional/routers/CorsRouterFunctions.java

@@ -8,13 +8,13 @@ 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.reactive.cors.global.functional.handlers.FunctionalHandler;
+import com.baeldung.reactive.cors.global.functional.handlers.CorsGlobalFunctionalHandler;
 
 @Configuration
 public class CorsRouterFunctions {
 
     @Bean
-    public RouterFunction<ServerResponse> responseHeaderRoute(@Autowired FunctionalHandler handler) {
+    public RouterFunction<ServerResponse> corsGlobalRouter(@Autowired CorsGlobalFunctionalHandler handler) {
         return RouterFunctions.route(RequestPredicates.PUT("/global-config-on-functional/cors-disabled-functional-endpoint"), handler::useHandler);
     }
 }

spring-5-reactive/src/main/java/com/baeldung/reactive/cors/webfilter/CorsWebFilterApplication.java

@@ -8,6 +8,9 @@ import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfigurat
 import org.springframework.boot.autoconfigure.data.mongo.MongoReactiveDataAutoConfiguration;
 import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
 import org.springframework.boot.autoconfigure.mongo.MongoReactiveAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.config.web.server.ServerHttpSecurity;
+import org.springframework.security.web.server.SecurityWebFilterChain;
 
 @SpringBootApplication(exclude = { MongoAutoConfiguration.class,
         MongoDataAutoConfiguration.class,
@@ -21,5 +24,11 @@ public class CorsWebFilterApplication {
         app.setDefaultProperties(Collections.singletonMap("server.port", "8083"));
         app.run(args);
     }
+    
+    @Bean
+    public SecurityWebFilterChain corsWebfilterSpringSecurityFilterChain(ServerHttpSecurity http) {
+        http.csrf().disable();
+        return http.build();
+    }
 
 }

spring-5-reactive/src/main/java/com/baeldung/reactive/cors/webfilter/functional/routers/CorsWithWebFilterRouterFunctions.java

@@ -14,7 +14,7 @@ import com.baeldung.reactive.cors.webfilter.functional.handlers.CorsWithWebFilte
 public class CorsWithWebFilterRouterFunctions {
 
     @Bean
-    public RouterFunction<ServerResponse> responseHeaderRoute(@Autowired CorsWithWebFilterHandler handler) {
+    public RouterFunction<ServerResponse> corsWebfilterRouter(@Autowired CorsWithWebFilterHandler handler) {
         return RouterFunctions.route(RequestPredicates.PUT("/web-filter-on-functional/functional-endpoint"), handler::useHandler);
     }
 }

spring-5-reactive/src/main/java/com/baeldung/reactive/serversentevents/consumer/ConsumerSSEApplication.java

@@ -4,9 +4,13 @@ import java.util.Collections;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.data.redis.RedisReactiveAutoConfiguration;
+import org.springframework.context.annotation.Bean;
 import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.security.config.web.server.ServerHttpSecurity;
+import org.springframework.security.web.server.SecurityWebFilterChain;
 
-@SpringBootApplication
+@SpringBootApplication(exclude = { RedisReactiveAutoConfiguration.class })
 @EnableAsync
 public class ConsumerSSEApplication {
 
@@ -15,5 +19,13 @@ public class ConsumerSSEApplication {
         app.setDefaultProperties(Collections.singletonMap("server.port", "8082"));
         app.run(args);
     }
+    
+    @Bean
+    public SecurityWebFilterChain sseConsumerSpringSecurityFilterChain(ServerHttpSecurity http) {
+        http.authorizeExchange()
+            .anyExchange()
+            .permitAll();
+        return http.build();
+    }
 
 }

spring-5-reactive/src/main/java/com/baeldung/reactive/serversentevents/server/ServerSSEApplication.java

@@ -4,14 +4,26 @@ import java.util.Collections;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.data.redis.RedisReactiveAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.config.web.server.ServerHttpSecurity;
+import org.springframework.security.web.server.SecurityWebFilterChain;
 
-@SpringBootApplication
+@SpringBootApplication(exclude = { RedisReactiveAutoConfiguration.class })
 public class ServerSSEApplication {
-    
+
     public static void main(String[] args) {
         SpringApplication app = new SpringApplication(ServerSSEApplication.class);
         app.setDefaultProperties(Collections.singletonMap("server.port", "8081"));
         app.run(args);
     }
 
+    @Bean
+    public SecurityWebFilterChain sseServerSpringSecurityFilterChain(ServerHttpSecurity http) {
+        http.authorizeExchange()
+            .anyExchange()
+            .permitAll();
+        return http.build();
+    }
+
 }

spring-5-reactive/src/main/java/com/baeldung/validations/functional/FunctionalValidationsApplication.java

@@ -2,6 +2,9 @@ package com.baeldung.validations.functional;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.config.web.server.ServerHttpSecurity;
+import org.springframework.security.web.server.SecurityWebFilterChain;
 
 @SpringBootApplication
 public class FunctionalValidationsApplication {
@@ -9,4 +12,13 @@ public class FunctionalValidationsApplication {
     public static void main(String[] args) {
         SpringApplication.run(FunctionalValidationsApplication.class, args);
     }
+    
+    @Bean
+    public SecurityWebFilterChain functionalValidationsSpringSecurityFilterChain(ServerHttpSecurity http) {
+        http.authorizeExchange()
+            .anyExchange()
+            .permitAll();
+        http.csrf().disable();
+        return http.build();
+    }
 }

spring-5-reactive/src/main/java/com/baeldung/validations/functional/routers/ValidationsRouters.java

@@ -17,7 +17,7 @@ import com.baeldung.validations.functional.handlers.impl.OtherEntityValidationHa
 public class ValidationsRouters {
 
     @Bean
-    public RouterFunction<ServerResponse> responseHeaderRoute(@Autowired CustomRequestEntityValidationHandler dryHandler,
+    public RouterFunction<ServerResponse> validationsRouter(@Autowired CustomRequestEntityValidationHandler dryHandler,
         @Autowired FunctionalHandler complexHandler,
         @Autowired OtherEntityValidationHandler otherHandler,
         @Autowired AnnotatedRequestEntityValidationHandler annotatedEntityHandler) {

spring-5-reactive/src/main/java/com/baeldung/websession/configuration/WebFluxSecurityConfig.java

@@ -34,9 +34,8 @@ public class WebFluxSecurityConfig {
     }
 
     @Bean
-    public SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
+    public SecurityWebFilterChain webSessionSpringSecurityFilterChain(ServerHttpSecurity http) {
-        http
+        http.authorizeExchange()
-                .authorizeExchange()
                 .anyExchange().authenticated()
                 .and()
                 .httpBasic()
@@ -44,8 +43,7 @@ public class WebFluxSecurityConfig {
                 .and()
                 .formLogin();
 
-        http
+        http.csrf().disable();
-                .csrf().disable();
 
         return http.build();
 

spring-5-reactive/src/test/java/com/baeldung/functional/FunctionalWebApplicationIntegrationTest.java

@@ -10,6 +10,7 @@ import org.springframework.boot.web.server.WebServer;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.Resource;
 import org.springframework.http.MediaType;
+import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;

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

@@ -1,6 +1,10 @@
 package com.baeldung.reactive;
 
-import com.baeldung.web.reactive.Task;
+import static org.springframework.web.reactive.function.server.RequestPredicates.GET;
+import static org.springframework.web.reactive.function.server.RequestPredicates.POST;
+
+import java.time.Duration;
+
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.springframework.http.server.reactive.HttpHandler;
@@ -8,22 +12,22 @@ 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.netty.DisposableServer;
-import reactor.ipc.netty.http.server.HttpServer;
+import reactor.netty.http.server.HttpServer;
-
-import java.time.Duration;
-
-import static org.springframework.web.reactive.function.server.RequestPredicates.GET;
-import static org.springframework.web.reactive.function.server.RequestPredicates.POST;
 
 public class Spring5ReactiveServerClientIntegrationTest {
-    private static NettyContext nettyContext;
+    private static DisposableServer disposableServer;
 
     @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))
@@ -31,13 +35,13 @@ 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)
+        disposableServer = server.handle(adapter)
-            .block();
+            .bindNow();
     }
 
     @AfterAll
     public static void shutDown() {
-        nettyContext.dispose();
+        disposableServer.disposeNow();
     }
 
     // @Test

spring-5-reactive/src/test/java/com/baeldung/reactive/cors/CorsOnAnnotatedElementsLiveTest.java

@@ -2,13 +2,10 @@ package com.baeldung.reactive.cors;
 
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.test.web.reactive.server.WebTestClient.ResponseSpec;
 
-@RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 public class CorsOnAnnotatedElementsLiveTest {
 

spring-5-reactive/src/test/java/com/baeldung/reactive/cors/CorsOnGlobalConfigLiveTest.java

@@ -2,13 +2,10 @@ package com.baeldung.reactive.cors;
 
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.test.web.reactive.server.WebTestClient.ResponseSpec;
 
-@RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 public class CorsOnGlobalConfigLiveTest {
 

spring-5-reactive/src/test/java/com/baeldung/reactive/cors/CorsOnWebFilterLiveTest.java

@@ -2,13 +2,10 @@ package com.baeldung.reactive.cors;
 
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.test.web.reactive.server.WebTestClient.ResponseSpec;
 
-@RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 public class CorsOnWebFilterLiveTest {
 

spring-5-reactive/src/test/java/com/baeldung/reactive/errorhandling/ErrorHandlingIntegrationTest.java

@@ -8,11 +8,13 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.http.MediaType;
+import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
+@WithMockUser
 public class ErrorHandlingIntegrationTest {
 
     @Autowired

spring-5-reactive/src/test/java/com/baeldung/reactive/filters/PlayerHandlerIntegrationTest.java

@@ -4,6 +4,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.EntityExchangeResult;
 import org.springframework.test.web.reactive.server.WebTestClient;
@@ -12,6 +13,7 @@ import static org.junit.Assert.assertEquals;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@WithMockUser
 public class PlayerHandlerIntegrationTest {
 
     @Autowired

spring-5-reactive/src/test/java/com/baeldung/reactive/filters/UserControllerIntegrationTest.java

@@ -4,6 +4,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.EntityExchangeResult;
 import org.springframework.test.web.reactive.server.WebTestClient;
@@ -12,6 +13,7 @@ import static org.junit.Assert.assertEquals;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@WithMockUser
 public class UserControllerIntegrationTest {
 
     @Autowired

spring-5-reactive/src/test/java/com/baeldung/reactive/responseheaders/ResponseHeaderLiveTest.java

@@ -2,13 +2,10 @@ package com.baeldung.reactive.responseheaders;
 
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.test.web.reactive.server.WebTestClient.ResponseSpec;
 
-@RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 public class ResponseHeaderLiveTest {
 

spring-5-reactive/src/test/java/com/baeldung/reactive/serversentsevents/ServiceSentEventLiveTest.java

@@ -3,14 +3,13 @@ package com.baeldung.reactive.serversentsevents;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.function.Executable;
-import org.junit.platform.runner.JUnitPlatform;
-import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.http.MediaType;
+import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.web.reactive.server.WebTestClient;
 
-@RunWith(JUnitPlatform.class)
 @SpringBootTest
+@WithMockUser
 public class ServiceSentEventLiveTest {
 
     private WebTestClient client = WebTestClient.bindToServer()

spring-5-reactive/src/test/java/com/baeldung/reactive/urlmatch/PathPatternsUsingHandlerMethodIntegrationTest.java

@@ -4,6 +4,7 @@ import org.junit.BeforeClass;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 
@@ -12,6 +13,7 @@ import com.baeldung.reactive.controller.PathPatternController;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = Spring5ReactiveApplication.class)
+@WithMockUser
 public class PathPatternsUsingHandlerMethodIntegrationTest {
 
     private static WebTestClient client;

spring-5-reactive/src/test/java/com/baeldung/validations/functional/FunctionalEndpointValidationsLiveTest.java

@@ -2,9 +2,7 @@ package com.baeldung.validations.functional;
 
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.test.web.reactive.server.WebTestClient.ResponseSpec;
 
@@ -13,7 +11,6 @@ import com.baeldung.validations.functional.model.CustomRequestEntity;
 
 import reactor.core.publisher.Mono;
 
-@RunWith(SpringRunner.class)
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 public class FunctionalEndpointValidationsLiveTest {
 

spring-5-reactive/src/test/java/com/baeldung/web/client/WebTestClientIntegrationTest.java

@@ -1,10 +1,10 @@
 package com.baeldung.web.client;
 
-import com.baeldung.reactive.Spring5ReactiveApplication;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.security.test.context.support.WithMockUser;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.reactive.server.WebTestClient;
 import org.springframework.web.reactive.function.server.RequestPredicates;
@@ -12,10 +12,14 @@ 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 org.springframework.web.server.WebHandler;
+
+import com.baeldung.reactive.Spring5ReactiveApplication;
+
 import reactor.core.publisher.Mono;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = Spring5ReactiveApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@WithMockUser
 public class WebTestClientIntegrationTest {
 
     @LocalServerPort