formatting work

spring-5-mvc/src/test/kotlin/com/baeldung/LiveTest.java

@@ -14,16 +14,19 @@ public class LiveTest {
 
     private static String APP_ROOT = "http://localhost:8081";
 
-    
     @Test
     public void givenUser_whenResourceCreatedWithNullName_then400BadRequest() {
-        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString()).body(resourceWithNullName()).post(APP_ROOT + "/foos");
+        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString())
+            .body(resourceWithNullName())
+            .post(APP_ROOT + "/foos");
         assertEquals(400, response.getStatusCode());
     }
 
     @Test
     public void givenUser_whenResourceCreated_then201Created() {
-        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString()).body(resourceString()).post(APP_ROOT + "/foos");
+        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString())
+            .body(resourceString())
+            .post(APP_ROOT + "/foos");
         assertEquals(201, response.getStatusCode());
     }
 
@@ -33,8 +36,6 @@ public class LiveTest {
         assertEquals(200, response.getStatusCode());
     }*/
 
-    
-
     //
 
     private final String resourceWithNullName() {
@@ -46,7 +47,10 @@ public class LiveTest {
     }
 
     private final RequestSpecification givenAuth(String username, String password) {
-        return RestAssured.given().auth().preemptive().basic(username, password);
+        return RestAssured.given()
+            .auth()
+            .preemptive()
+            .basic(username, password);
     }
 
 }

spring-5/src/main/java/com/baeldung/functional/FormHandler.java

@@ -17,27 +17,24 @@ import static org.springframework.web.reactive.function.server.ServerResponse.ok
 public class FormHandler {
 
     Mono<ServerResponse> handleLogin(ServerRequest request) {
-        return request
+        return request.body(toFormData())
-          .body(toFormData())
             .map(MultiValueMap::toSingleValueMap)
             .filter(formData -> "baeldung".equals(formData.get("user")))
             .filter(formData -> "you_know_what_to_do".equals(formData.get("token")))
             .flatMap(formData -> ok().body(Mono.just("welcome back!"), String.class))
-          .switchIfEmpty(ServerResponse.badRequest().build());
+            .switchIfEmpty(ServerResponse.badRequest()
+                .build());
     }
 
     Mono<ServerResponse> handleUpload(ServerRequest request) {
-        return request
+        return request.body(toDataBuffers())
-          .body(toDataBuffers())
             .collectList()
-          .flatMap(dataBuffers -> ok()
+            .flatMap(dataBuffers -> ok().body(fromObject(extractData(dataBuffers).toString())));
-            .body(fromObject(extractData(dataBuffers).toString())));
     }
 
     private AtomicLong extractData(List<DataBuffer> dataBuffers) {
         AtomicLong atomicLong = new AtomicLong(0);
-        dataBuffers.forEach(d -> atomicLong.addAndGet(d
+        dataBuffers.forEach(d -> atomicLong.addAndGet(d.asByteBuffer()
-          .asByteBuffer()
             .array().length));
         return atomicLong;
     }

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

@@ -40,13 +40,11 @@ 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
+        RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
-          .bodyToMono(Actor.class)
             .doOnNext(actors::add)
             .then(ok().build()));
 
-        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld")))
+        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), formHandler::handleLogin)
-          .andRoute(POST("/login"), formHandler::handleLogin)
             .andRoute(POST("/upload"), formHandler::handleUpload)
             .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
             .andNest(path("/actor"), restfulRouter)
@@ -58,8 +56,7 @@ public class FunctionalSpringBootApplication {
 
     @Bean
     public ServletRegistrationBean servletRegistrationBean() throws Exception {
-        HttpHandler httpHandler = WebHttpHandlerBuilder
+        HttpHandler httpHandler = WebHttpHandlerBuilder.webHandler((WebHandler) toHttpHandler(routingFunction()))
-          .webHandler((WebHandler) toHttpHandler(routingFunction()))
             .prependFilter(new IndexRewriteFilter())
             .build();
         ServletRegistrationBean registrationBean = new ServletRegistrationBean<>(new RootServlet(httpHandler), "/");
@@ -74,8 +71,7 @@ public class FunctionalSpringBootApplication {
     static class SecurityConfig extends WebSecurityConfigurerAdapter {
         @Override
         protected void configure(final HttpSecurity http) throws Exception {
-            http
+            http.authorizeRequests()
-              .authorizeRequests()
                 .anyRequest()
                 .permitAll();
         }

spring-5/src/main/java/com/baeldung/functional/FunctionalWebApplication.java

@@ -33,13 +33,11 @@ public class FunctionalWebApplication {
     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
+        RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
-          .bodyToMono(Actor.class)
             .doOnNext(actors::add)
             .then(ok().build()));
 
-        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld")))
+        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), formHandler::handleLogin)
-          .andRoute(POST("/login"), formHandler::handleLogin)
             .andRoute(POST("/upload"), formHandler::handleUpload)
             .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
             .andNest(path("/actor"), restfulRouter)
@@ -51,8 +49,7 @@ public class FunctionalWebApplication {
 
     WebServer start() throws Exception {
         WebHandler webHandler = (WebHandler) toHttpHandler(routingFunction());
-        HttpHandler httpHandler = WebHttpHandlerBuilder
+        HttpHandler httpHandler = WebHttpHandlerBuilder.webHandler(webHandler)
-          .webHandler(webHandler)
             .prependFilter(new IndexRewriteFilter())
             .build();
 

spring-5/src/main/java/com/baeldung/functional/IndexRewriteFilter.java

@@ -11,15 +11,13 @@ class IndexRewriteFilter implements WebFilter {
     @Override
     public Mono<Void> filter(ServerWebExchange serverWebExchange, WebFilterChain webFilterChain) {
         ServerHttpRequest request = serverWebExchange.getRequest();
-        if (request
+        if (request.getURI()
-          .getURI()
             .getPath()
             .equals("/")) {
-            return webFilterChain.filter(serverWebExchange
+            return webFilterChain.filter(serverWebExchange.mutate()
-              .mutate()
+                .request(builder -> builder.method(request.getMethod())
-              .request(builder -> builder
+                    .contextPath(request.getPath()
-                .method(request.getMethod())
+                        .toString())
-                .contextPath(request.getPath().toString())
                     .path("/test"))
                 .build());
         }

spring-5/src/main/java/com/baeldung/functional/RootServlet.java

@@ -28,8 +28,7 @@ import org.springframework.web.server.WebHandler;
 public class RootServlet extends ServletHttpHandlerAdapter {
 
     public RootServlet() {
-        this(WebHttpHandlerBuilder
+        this(WebHttpHandlerBuilder.webHandler((WebHandler) toHttpHandler(routingFunction()))
-          .webHandler((WebHandler) toHttpHandler(routingFunction()))
             .prependFilter(new IndexRewriteFilter())
             .build());
     }
@@ -44,38 +43,30 @@ public class RootServlet extends ServletHttpHandlerAdapter {
 
     private static RouterFunction<?> routingFunction() {
 
-        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld")))
+        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), serverRequest -> serverRequest.body(toFormData())
-          .andRoute(POST("/login"), serverRequest -> serverRequest
-            .body(toFormData())
             .map(MultiValueMap::toSingleValueMap)
             .map(formData -> {
                 System.out.println("form data: " + formData.toString());
                 if ("baeldung".equals(formData.get("user")) && "you_know_what_to_do".equals(formData.get("token"))) {
-                    return ok()
+                    return ok().body(Mono.just("welcome back!"), String.class)
-                      .body(Mono.just("welcome back!"), String.class)
                         .block();
                 }
-                return ServerResponse
+                return ServerResponse.badRequest()
-                  .badRequest()
                     .build()
                     .block();
             }))
-          .andRoute(POST("/upload"), serverRequest -> serverRequest
+            .andRoute(POST("/upload"), serverRequest -> serverRequest.body(toDataBuffers())
-            .body(toDataBuffers())
                 .collectList()
                 .map(dataBuffers -> {
                     AtomicLong atomicLong = new AtomicLong(0);
-                dataBuffers.forEach(d -> atomicLong.addAndGet(d
+                    dataBuffers.forEach(d -> atomicLong.addAndGet(d.asByteBuffer()
-                  .asByteBuffer()
                         .array().length));
                     System.out.println("data length:" + atomicLong.get());
-                return ok()
+                    return ok().body(fromObject(atomicLong.toString()))
-                  .body(fromObject(atomicLong.toString()))
                         .block();
                 }))
             .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
-          .andNest(path("/actor"), route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest
+            .andNest(path("/actor"), route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
-            .bodyToMono(Actor.class)
                 .doOnNext(actors::add)
                 .then(ok().build())))
             .filter((request, next) -> {

spring-5/src/main/java/com/baeldung/jupiter/ParameterAutowireUtils.java

@@ -27,15 +27,13 @@ abstract class ParameterAutowireUtils {
 
     public static Object resolveDependency(Parameter parameter, Class<?> containingClass, ApplicationContext applicationContext) {
 
-        boolean required = findMergedAnnotation(parameter, Autowired.class)
+        boolean required = findMergedAnnotation(parameter, Autowired.class).map(Autowired::required)
-          .map(Autowired::required)
             .orElse(true);
         MethodParameter methodParameter = (parameter.getDeclaringExecutable() instanceof Method ? MethodParameterFactory.createSynthesizingMethodParameter(parameter) : MethodParameterFactory.createMethodParameter(parameter));
         DependencyDescriptor descriptor = new DependencyDescriptor(methodParameter, required);
         descriptor.setContainingClass(containingClass);
 
-        return applicationContext
+        return applicationContext.getAutowireCapableBeanFactory()
-          .getAutowireCapableBeanFactory()
             .resolveDependency(descriptor, null);
     }
 

spring-5/src/main/java/com/baeldung/jupiter/SpringExtension.java

@@ -26,10 +26,8 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
         try {
             getTestContextManager(context).afterTestClass();
         } finally {
-            context
+            context.getStore(namespace)
-              .getStore(namespace)
+                .remove(context.getTestClass()
-              .remove(context
-                .getTestClass()
                     .get());
         }
     }
@@ -42,8 +40,7 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
     @Override
     public void beforeEach(TestExtensionContext context) throws Exception {
         Object testInstance = context.getTestInstance();
-        Method testMethod = context
+        Method testMethod = context.getTestMethod()
-          .getTestMethod()
             .get();
         getTestContextManager(context).beforeTestMethod(testInstance, testMethod);
     }
@@ -51,11 +48,9 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
     @Override
     public void afterEach(TestExtensionContext context) throws Exception {
         Object testInstance = context.getTestInstance();
-        Method testMethod = context
+        Method testMethod = context.getTestMethod()
-          .getTestMethod()
             .get();
-        Throwable testException = context
+        Throwable testException = context.getTestException()
-          .getTestException()
             .orElse(null);
         getTestContextManager(context).afterTestMethod(testInstance, testMethod, testException);
     }
@@ -70,23 +65,20 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
     @Override
     public Object resolve(ParameterContext parameterContext, ExtensionContext extensionContext) {
         Parameter parameter = parameterContext.getParameter();
-        Class<?> testClass = extensionContext
+        Class<?> testClass = extensionContext.getTestClass()
-          .getTestClass()
             .get();
         ApplicationContext applicationContext = getApplicationContext(extensionContext);
         return ParameterAutowireUtils.resolveDependency(parameter, testClass, applicationContext);
     }
 
     private ApplicationContext getApplicationContext(ExtensionContext context) {
-        return getTestContextManager(context)
+        return getTestContextManager(context).getTestContext()
-          .getTestContext()
             .getApplicationContext();
     }
 
     private TestContextManager getTestContextManager(ExtensionContext context) {
         Assert.notNull(context, "ExtensionContext must not be null");
-        Class<?> testClass = context
+        Class<?> testClass = context.getTestClass()
-          .getTestClass()
             .get();
         ExtensionContext.Store store = context.getStore(namespace);
         return store.getOrComputeIfAbsent(testClass, TestContextManager::new, TestContextManager.class);

spring-5/src/main/java/com/baeldung/jupiter/SpringJUnit5Config.java

@@ -26,8 +26,7 @@ public @interface SpringJUnit5Config {
     String[] locations() default {};
 
     @AliasFor(annotation = ContextConfiguration.class)
-    Class<? extends ApplicationContextInitializer<?
+    Class<? extends ApplicationContextInitializer<? extends ConfigurableApplicationContext>>[] initializers() default {};
-      extends ConfigurableApplicationContext>>[] initializers() default {};
 
     @AliasFor(annotation = ContextConfiguration.class)
     boolean inheritLocations() default true;

spring-5/src/main/java/com/baeldung/persistence/DataSetupBean.java

@@ -20,7 +20,8 @@ public class DataSetupBean implements InitializingBean {
 
     @Override
     public void afterPropertiesSet() throws Exception {
-        IntStream.range(1, 20).forEach(i -> repo.save(new Foo(randomAlphabetic(8))));
+        IntStream.range(1, 20)
+            .forEach(i -> repo.save(new Foo(randomAlphabetic(8))));
     }
 
 }

spring-5/src/main/java/com/baeldung/web/FooController.java

@@ -23,7 +23,8 @@ public class FooController {
     @ResponseBody
     @Validated
     public Foo findById(@PathVariable @Min(0) final long id) {
-        return repo.findById(id).orElse(null);
+        return repo.findById(id)
+            .orElse(null);
     }
 
     @GetMapping
@@ -36,7 +37,8 @@ public class FooController {
     @ResponseBody
     @Validated
     public List<Foo> findPaginated(@RequestParam("page") @Min(0) final int page, @Max(100) @RequestParam("size") final int size) {
-        return repo.findAll(PageRequest.of(page, size)).getContent();
+        return repo.findAll(PageRequest.of(page, size))
+            .getContent();
     }
 
     // API - write

spring-5/src/main/java/com/baeldung/web/reactive/Task.java

@@ -23,9 +23,6 @@ public class Task {
 
     @Override
     public String toString() {
-        return "Task{" +
+        return "Task{" + "name='" + name + '\'' + ", id=" + id + '}';
-          "name='" + name + '\'' +
-          ", id=" + id +
-          '}';
     }
 }

spring-5/src/main/java/com/baeldung/web/reactive/client/WebClientController.java

@@ -33,17 +33,17 @@ public class WebClientController {
         WebClient.UriSpec<WebClient.RequestBodySpec> request2 = createWebClientWithServerURLAndDefaultValues().post();
 
         // request body specifications
-        WebClient.RequestBodySpec uri1 = createWebClientWithServerURLAndDefaultValues().method(HttpMethod.POST).uri("/resource");
+        WebClient.RequestBodySpec uri1 = createWebClientWithServerURLAndDefaultValues().method(HttpMethod.POST)
-        WebClient.RequestBodySpec uri2 = createWebClientWithServerURLAndDefaultValues().post().uri(URI.create("/resource"));
+            .uri("/resource");
+        WebClient.RequestBodySpec uri2 = createWebClientWithServerURLAndDefaultValues().post()
+            .uri(URI.create("/resource"));
 
         // request header specification
         WebClient.RequestHeadersSpec<?> requestSpec1 = uri1.body(BodyInserters.fromPublisher(Mono.just("data"), String.class));
         WebClient.RequestHeadersSpec<?> requestSpec2 = uri2.body(BodyInserters.fromObject("data"));
 
         // inserters
-        BodyInserter<Publisher<String>, ReactiveHttpOutputMessage> inserter1 = BodyInserters
+        BodyInserter<Publisher<String>, ReactiveHttpOutputMessage> inserter1 = BodyInserters.fromPublisher(Subscriber::onComplete, String.class);
-                .fromPublisher(Subscriber::onComplete, String.class);
-
 
         LinkedMultiValueMap<String, String> map = new LinkedMultiValueMap<>();
         map.add("key1", "value1");
@@ -53,8 +53,7 @@ public class WebClientController {
         BodyInserter<String, ReactiveHttpOutputMessage> inserter3 = BodyInserters.fromObject("body");
 
         // responses
-        WebClient.ResponseSpec response1 = uri1
+        WebClient.ResponseSpec response1 = uri1.body(inserter3)
-                .body(inserter3)
             .header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
             .accept(MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML)
             .acceptCharset(Charset.forName("UTF-8"))
@@ -74,8 +73,7 @@ public class WebClientController {
     }
 
     private WebClient createWebClientWithServerURLAndDefaultValues() {
-        return WebClient
+        return WebClient.builder()
-                .builder()
             .baseUrl("http://localhost:8081")
             .defaultCookie("cookieKey", "cookieValue")
             .defaultHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)

spring-5/src/test/java/com/baeldung/Spring5JUnit4ConcurrentIntegrationTest.java

@@ -50,5 +50,3 @@ public class Spring5JUnit4ConcurrentIntegrationTest implements ApplicationContex
     }
 
 }
-
-

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

@@ -23,8 +23,7 @@ public class FunctionalWebApplicationIntegrationTest {
     @BeforeClass
     public static void setup() throws Exception {
         server = new FunctionalWebApplication().start();
-        client = WebTestClient
+        client = WebTestClient.bindToServer()
-          .bindToServer()
             .baseUrl("http://localhost:" + server.getPort())
             .build();
     }
@@ -36,8 +35,7 @@ public class FunctionalWebApplicationIntegrationTest {
 
     @Test
     public void givenRouter_whenGetTest_thenGotHelloWorld() throws Exception {
-        client
+        client.get()
-          .get()
             .uri("/test")
             .exchange()
             .expectStatus()
@@ -48,8 +46,7 @@ public class FunctionalWebApplicationIntegrationTest {
 
     @Test
     public void givenIndexFilter_whenRequestRoot_thenRewrittenToTest() throws Exception {
-        client
+        client.get()
-          .get()
             .uri("/")
             .exchange()
             .expectStatus()
@@ -64,8 +61,7 @@ public class FunctionalWebApplicationIntegrationTest {
         formData.add("user", "baeldung");
         formData.add("token", "you_know_what_to_do");
 
-        client
+        client.post()
-          .post()
             .uri("/login")
             .contentType(MediaType.APPLICATION_FORM_URLENCODED)
             .body(BodyInserters.fromFormData(formData))
@@ -82,8 +78,7 @@ public class FunctionalWebApplicationIntegrationTest {
         formData.add("user", "baeldung");
         formData.add("token", "try_again");
 
-        client
+        client.post()
-          .post()
             .uri("/login")
             .contentType(MediaType.APPLICATION_FORM_URLENCODED)
             .body(BodyInserters.fromFormData(formData))
@@ -95,8 +90,7 @@ public class FunctionalWebApplicationIntegrationTest {
     @Test
     public void givenUploadForm_whenRequestWithMultipartData_thenSuccess() throws Exception {
         Resource resource = new ClassPathResource("/baeldung-weekly.png");
-        client
+        client.post()
-          .post()
             .uri("/upload")
             .contentType(MediaType.MULTIPART_FORM_DATA)
             .body(fromResource(resource))
@@ -109,8 +103,7 @@ public class FunctionalWebApplicationIntegrationTest {
 
     @Test
     public void givenActors_whenAddActor_thenAdded() throws Exception {
-        client
+        client.get()
-          .get()
             .uri("/actor")
             .exchange()
             .expectStatus()
@@ -118,16 +111,14 @@ public class FunctionalWebApplicationIntegrationTest {
             .expectBodyList(Actor.class)
             .hasSize(2);
 
-        client
+        client.post()
-          .post()
             .uri("/actor")
             .body(fromObject(new Actor("Clint", "Eastwood")))
             .exchange()
             .expectStatus()
             .isOk();
 
-        client
+        client.get()
-          .get()
             .uri("/actor")
             .exchange()
             .expectStatus()
@@ -138,8 +129,7 @@ public class FunctionalWebApplicationIntegrationTest {
 
     @Test
     public void givenResources_whenAccess_thenGot() throws Exception {
-        client
+        client.get()
-          .get()
             .uri("/files/hello.txt")
             .exchange()
             .expectStatus()

spring-5/src/test/java/com/baeldung/jupiter/Spring5JUnit5ParallelIntegrationTest.java

@@ -11,18 +11,14 @@ class Spring5JUnit5ParallelIntegrationTest {
 
     @Test
     void givenTwoTestClasses_whenJUnitRunParallel_thenTheTestsExecutingParallel() {
-        final Class<?>[] classes = {
+        final Class<?>[] classes = { Example1IntegrationTest.class, Example2IntegrationTest.class };
-          Example1IntegrationTest.class, Example2IntegrationTest.class
-        };
 
         JUnitCore.runClasses(new ParallelComputer(true, true), classes);
     }
 
     @Test
     void givenTwoTestClasses_whenJUnitRunParallel_thenTheTestsExecutingLinear() {
-        final Class<?>[] classes = {
+        final Class<?>[] classes = { Example1IntegrationTest.class, Example2IntegrationTest.class };
-          Example1IntegrationTest.class, Example2IntegrationTest.class
-        };
 
         JUnitCore.runClasses(new Computer(), classes);
     }

spring-5/src/test/java/com/baeldung/jupiter/Spring5Java8NewFeaturesIntegrationTest.java

@@ -16,18 +16,16 @@ class Spring5Java8NewFeaturesIntegrationTest {
     }
 
     public class StringUtils {
-        FunctionalInterfaceExample<String, String>
+        FunctionalInterfaceExample<String, String> functionLambdaString = s -> Pattern.compile(" +")
-          functionLambdaString = s -> Pattern.compile(" +").splitAsStream(s)
+            .splitAsStream(s)
             .map(word -> new StringBuilder(word).reverse())
             .collect(Collectors.joining(" "));
     }
 
     @Test
-    void givenStringUtil_whenSupplierCall_thenFunctionalInterfaceReverseString()
+    void givenStringUtil_whenSupplierCall_thenFunctionalInterfaceReverseString() throws Exception {
-      throws Exception {
         Supplier<StringUtils> stringUtilsSupplier = StringUtils::new;
 
-        assertEquals(stringUtilsSupplier.get().functionLambdaString
+        assertEquals(stringUtilsSupplier.get().functionLambdaString.reverseString("hello"), "olleh");
-          .reverseString("hello"), "olleh");
     }
 }

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

@@ -25,19 +25,14 @@ public class Spring5ReactiveServerClientIntegrationTest {
     @BeforeAll
     public static void setUp() throws Exception {
         HttpServer server = HttpServer.create("localhost", 8080);
-        RouterFunction<?> route = RouterFunctions
+        RouterFunction<?> route = RouterFunctions.route(POST("/task/process"), request -> ServerResponse.ok()
-          .route(POST("/task/process"), request -> ServerResponse
+            .body(request.bodyToFlux(Task.class)
-            .ok()
-            .body(request
-              .bodyToFlux(Task.class)
                 .map(ll -> new Task("TaskName", 1)), Task.class))
-          .and(RouterFunctions.route(GET("/task"), request -> ServerResponse
+            .and(RouterFunctions.route(GET("/task"), request -> ServerResponse.ok()
-            .ok()
                 .body(Mono.just("server is alive"), String.class)));
         HttpHandler httpHandler = RouterFunctions.toHttpHandler(route);
         ReactorHttpHandlerAdapter adapter = new ReactorHttpHandlerAdapter(httpHandler);
-        nettyContext = server
+        nettyContext = server.newHandler(adapter)
-          .newHandler(adapter)
             .block();
     }
 
@@ -91,8 +86,7 @@ public class Spring5ReactiveServerClientIntegrationTest {
     // }
 
     private static Flux<Task> getLatLngs() {
-        return Flux
+        return Flux.range(0, 3)
-          .range(0, 3)
             .zipWith(Flux.interval(Duration.ofSeconds(1)))
             .map(x -> new Task("taskname", 1))
             .doOnNext(ll -> System.out.println("Produced: {}" + ll));

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

@@ -21,37 +21,39 @@ public class WebTestClientTest {
     @LocalServerPort
     private int port;
 
-    private final RouterFunction ROUTER_FUNCTION = RouterFunctions.route(
+    private final RouterFunction ROUTER_FUNCTION = RouterFunctions.route(RequestPredicates.GET("/resource"), request -> ServerResponse.ok()
-            RequestPredicates.GET("/resource"),
+        .build());
-            request -> ServerResponse.ok().build()
-    );
     private final WebHandler WEB_HANDLER = exchange -> Mono.empty();
 
     @Test
     public void testWebTestClientWithServerWebHandler() {
-        WebTestClient.bindToWebHandler(WEB_HANDLER).build();
+        WebTestClient.bindToWebHandler(WEB_HANDLER)
+            .build();
     }
 
     @Test
     public void testWebTestClientWithRouterFunction() {
-        WebTestClient
+        WebTestClient.bindToRouterFunction(ROUTER_FUNCTION)
-                .bindToRouterFunction(ROUTER_FUNCTION)
+            .build()
-                .build().get().uri("/resource")
+            .get()
+            .uri("/resource")
             .exchange()
-                .expectStatus().isOk()
+            .expectStatus()
-                .expectBody().isEmpty();
+            .isOk()
+            .expectBody()
+            .isEmpty();
     }
 
     @Test
     public void testWebTestClientWithServerURL() {
-        WebTestClient
+        WebTestClient.bindToServer()
-                .bindToServer()
             .baseUrl("http://localhost:" + port)
             .build()
             .get()
             .uri("/resource")
             .exchange()
-                .expectStatus().is4xxClientError()
+            .expectStatus()
+            .is4xxClientError()
             .expectBody();
     }