Polish

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/WebEndpointProperties.java

@@ -42,5 +42,3 @@ public class WebEndpointProperties {
 	}
 
 }
-
-

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/servlet/WebMvcEndpointManagementContextConfiguration.java

@@ -57,12 +57,12 @@ public class WebMvcEndpointManagementContextConfiguration {
 	@ConditionalOnMissingBean
 	public WebMvcEndpointHandlerMapping webEndpointServletHandlerMapping(
 			EndpointProvider<WebEndpointOperation> provider,
-			EndpointMediaTypes endpointMediaTypes,
-			CorsEndpointProperties corsProperties,
+			EndpointMediaTypes endpointMediaTypes, CorsEndpointProperties corsProperties,
 			WebEndpointProperties webEndpointProperties) {
 		WebMvcEndpointHandlerMapping handlerMapping = new WebMvcEndpointHandlerMapping(
 				new EndpointMapping(webEndpointProperties.getBasePath()),
-				provider.getEndpoints(), endpointMediaTypes, getCorsConfiguration(corsProperties));
+				provider.getEndpoints(), endpointMediaTypes,
+				getCorsConfiguration(corsProperties));
 		return handlerMapping;
 	}
 

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/server/ManagementContextAutoConfiguration.java

@@ -43,17 +43,18 @@ import org.springframework.web.context.ConfigurableWebApplicationContext;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for the management context. If the
- * {@code management.server.port} is the same as the {@code server.port} the management context
- * will be the same as the main application context. If the {@code management.server.port} is
- * different to the {@code server.port} the management context will be a separate context
- * that has the main application context as its parent.
+ * {@code management.server.port} is the same as the {@code server.port} the management
+ * context will be the same as the main application context. If the
+ * {@code management.server.port} is different to the {@code server.port} the management
+ * context will be a separate context that has the main application context as its parent.
  *
  * @author Andy Wilkinson
  * @since 2.0.0
  */
 @Configuration
 @AutoConfigureOrder(Ordered.LOWEST_PRECEDENCE)
-@EnableConfigurationProperties({ WebEndpointProperties.class, ManagementServerProperties.class })
+@EnableConfigurationProperties({ WebEndpointProperties.class,
+		ManagementServerProperties.class })
 public class ManagementContextAutoConfiguration {
 
 	@Configuration
@@ -77,8 +78,8 @@ public class ManagementContextAutoConfiguration {
 		}
 
 		private void verifySslConfiguration() {
-			Boolean enabled = this.environment.getProperty("management.server.ssl.enabled",
-					Boolean.class, false);
+			Boolean enabled = this.environment
+					.getProperty("management.server.ssl.enabled", Boolean.class, false);
 			Assert.state(!enabled,
 					"Management-specific SSL cannot be configured as the management "
 							+ "server is not listening on a separate port");

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/WebEndpointPropertiesTests.java

@@ -34,4 +34,3 @@ public class WebEndpointPropertiesTests {
 	}
 
 }
-

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/integrationtest/WebMvcEndpointIntegrationTests.java

@@ -85,8 +85,7 @@ public class WebMvcEndpointIntegrationTests {
 	}
 
 	@Test
-	public void endpointsAreSecureWithActuatorRoleWithCustomBasePath()
-			throws Exception {
+	public void endpointsAreSecureWithActuatorRoleWithCustomBasePath() throws Exception {
 		TestSecurityContextHolder.getContext().setAuthentication(
 				new TestingAuthenticationToken("user", "N/A", "ROLE_ACTUATOR"));
 		this.context = new AnnotationConfigWebApplicationContext();

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/context/ShutdownEndpointTests.java

@@ -74,8 +74,8 @@ public class ShutdownEndpointTests {
 				EmptyConfig.class).child(EndpointConfig.class)
 						.web(WebApplicationType.NONE).run();
 		CountDownLatch latch = context.getBean(EndpointConfig.class).latch;
-		assertThat(context.getBean(ShutdownEndpoint.class).shutdown()
-				.get("message")).startsWith("Shutting down");
+		assertThat(context.getBean(ShutdownEndpoint.class).shutdown().get("message"))
+				.startsWith("Shutting down");
 		assertThat(context.isActive()).isTrue();
 		assertThat(latch.await(10, TimeUnit.SECONDS)).isTrue();
 	}
@@ -87,8 +87,8 @@ public class ShutdownEndpointTests {
 						.web(WebApplicationType.NONE).run();
 		CountDownLatch parentLatch = context.getBean(EndpointConfig.class).latch;
 		CountDownLatch childLatch = context.getBean(EmptyConfig.class).latch;
-		assertThat(context.getBean(ShutdownEndpoint.class).shutdown()
-				.get("message")).startsWith("Shutting down");
+		assertThat(context.getBean(ShutdownEndpoint.class).shutdown().get("message"))
+				.startsWith("Shutting down");
 		assertThat(context.isActive()).isTrue();
 		assertThat(parentLatch.await(10, TimeUnit.SECONDS)).isTrue();
 		assertThat(childLatch.await(10, TimeUnit.SECONDS)).isTrue();

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.java

@@ -138,7 +138,8 @@ class HibernateJpaConfiguration extends JpaBaseConfiguration {
 		}
 	}
 
-	private void configureProviderDisablesAutocommit(Map<String, Object> vendorProperties) {
+	private void configureProviderDisablesAutocommit(
+			Map<String, Object> vendorProperties) {
 		if (isDataSourceAutoCommitDisabled() && !isJta()) {
 			vendorProperties.put(PROVIDER_DISABLES_AUTOCOMMIT, "true");
 		}

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/client/OAuth2ClientProperties.java

@@ -145,8 +145,7 @@ public class OAuth2ClientProperties {
 			return this.clientAuthenticationMethod;
 		}
 
-		public void setClientAuthenticationMethod(
-				String clientAuthenticationMethod) {
+		public void setClientAuthenticationMethod(String clientAuthenticationMethod) {
 			this.clientAuthenticationMethod = clientAuthenticationMethod;
 		}
 
@@ -154,8 +153,7 @@ public class OAuth2ClientProperties {
 			return this.authorizationGrantType;
 		}
 
-		public void setAuthorizationGrantType(
-				String authorizationGrantType) {
+		public void setAuthorizationGrantType(String authorizationGrantType) {
 			this.authorizationGrantType = authorizationGrantType;
 		}
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/client/OAuth2ClientPropertiesRegistrationAdapter.java

@@ -47,10 +47,8 @@ final class OAuth2ClientPropertiesRegistrationAdapter {
 	public static Map<String, ClientRegistration> getClientRegistrations(
 			OAuth2ClientProperties properties) {
 		Map<String, ClientRegistration> clientRegistrations = new HashMap<>();
-		properties.getRegistration().forEach((key, value) -> {
-			clientRegistrations.put(key,
-					getClientRegistration(key, value, properties.getProvider()));
-		});
+		properties.getRegistration().forEach((key, value) -> clientRegistrations.put(key,
+				getClientRegistration(key, value, properties.getProvider())));
 		return clientRegistrations;
 	}
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/AbstractErrorWebExceptionHandler.java

@@ -46,7 +46,8 @@ import org.springframework.web.server.ServerWebExchange;
  * @since 2.0.0
  * @see ErrorAttributes
  */
-public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExceptionHandler, InitializingBean {
+public abstract class AbstractErrorWebExceptionHandler
+		implements ErrorWebExceptionHandler, InitializingBean {
 
 	private final ApplicationContext applicationContext;
 
@@ -71,7 +72,8 @@ public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExcept
 		this.errorAttributes = errorAttributes;
 		this.resourceProperties = resourceProperties;
 		this.applicationContext = applicationContext;
-		this.templateAvailabilityProviders = new TemplateAvailabilityProviders(applicationContext);
+		this.templateAvailabilityProviders = new TemplateAvailabilityProviders(
+				applicationContext);
 	}
 
 	/**
@@ -101,13 +103,14 @@ public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExcept
 	}
 
 	/**
-	 * Extract the error attributes from the current request, to be used
-	 * to populate error views or JSON payloads.
+	 * Extract the error attributes from the current request, to be used to populate error
+	 * views or JSON payloads.
 	 * @param request the source request
 	 * @param includeStackTrace whether to include the error stacktrace information
 	 * @return the error attributes as a Map.
 	 */
-	protected Map<String, Object> getErrorAttributes(ServerRequest request, boolean includeStackTrace) {
+	protected Map<String, Object> getErrorAttributes(ServerRequest request,
+			boolean includeStackTrace) {
 		return this.errorAttributes.getErrorAttributes(request, includeStackTrace);
 	}
 
@@ -117,16 +120,16 @@ public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExcept
 	}
 
 	/**
-	 * Render the given error data as a view, using a template view if available
-	 * or a static HTML file if available otherwise. This will return an empty
+	 * Render the given error data as a view, using a template view if available or a
+	 * static HTML file if available otherwise. This will return an empty
 	 * {@code Publisher} if none of the above are available.
 	 * @param viewName the view name
 	 * @param responseBody the error response being built
 	 * @param error the error data as a map
 	 * @return a Publisher of the {@link ServerResponse}
 	 */
-	protected Mono<ServerResponse> renderErrorView(String viewName, ServerResponse.BodyBuilder responseBody,
-			Map<String, Object> error) {
+	protected Mono<ServerResponse> renderErrorView(String viewName,
+			ServerResponse.BodyBuilder responseBody, Map<String, Object> error) {
 		if (isTemplateAvailable(viewName)) {
 			return responseBody.render(viewName, error);
 		}
@@ -138,7 +141,8 @@ public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExcept
 	}
 
 	private boolean isTemplateAvailable(String viewName) {
-		return this.templateAvailabilityProviders.getProvider(viewName, this.applicationContext) != null;
+		return this.templateAvailabilityProviders.getProvider(viewName,
+				this.applicationContext) != null;
 	}
 
 	private Resource resolveResource(String viewName) {
@@ -158,23 +162,23 @@ public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExcept
 
 	/**
 	 * Render a default HTML "Whitelabel Error Page".
-	 * <p>Useful when no other error view is available in the application.
+	 * <p>
+	 * Useful when no other error view is available in the application.
 	 * @param responseBody the error response being built
 	 * @param error the error data as a map
 	 * @return a Publisher of the {@link ServerResponse}
 	 */
-	protected Mono<ServerResponse> renderDefaultErrorView(ServerResponse.BodyBuilder responseBody,
-			Map<String, Object> error) {
+	protected Mono<ServerResponse> renderDefaultErrorView(
+			ServerResponse.BodyBuilder responseBody, Map<String, Object> error) {
 		StringBuilder builder = new StringBuilder();
 		Date timestamp = (Date) error.get("timestamp");
 		builder.append("<html><body><h1>Whitelabel Error Page</h1>")
 				.append("<p>This application has no configured error view, so you are seeing this as a fallback.</p>")
-				.append("<div id='created'>").append(timestamp.toString()).append("</div>")
-				.append("<div>There was an unexpected error (type=")
-				.append(error.get("error")).append(", status=").append(error.get("status"))
-				.append(").</div>")
-				.append("<div>").append(error.get("message")).append("</div>")
-				.append("</body></html>");
+				.append("<div id='created'>").append(timestamp.toString())
+				.append("</div>").append("<div>There was an unexpected error (type=")
+				.append(error.get("error")).append(", status=")
+				.append(error.get("status")).append(").</div>").append("<div>")
+				.append(error.get("message")).append("</div>").append("</body></html>");
 		return responseBody.syncBody(builder.toString());
 	}
 
@@ -188,27 +192,31 @@ public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExcept
 	/**
 	 * Create a {@link RouterFunction} that can route and handle errors as JSON responses
 	 * or HTML views.
-	 * <p>If the returned {@link RouterFunction} doesn't route to a {@code HandlerFunction},
+	 * <p>
+	 * If the returned {@link RouterFunction} doesn't route to a {@code HandlerFunction},
 	 * the original exception is propagated in the pipeline and can be processed by other
 	 * {@link org.springframework.web.server.WebExceptionHandler}s.
-	 * @param errorAttributes the {@code ErrorAttributes} instance to use to extract error information
+	 * @param errorAttributes the {@code ErrorAttributes} instance to use to extract error
+	 * information
 	 * @return a {@link RouterFunction} that routes and handles errors
 	 */
-	protected abstract RouterFunction<ServerResponse> getRoutingFunction(ErrorAttributes errorAttributes);
+	protected abstract RouterFunction<ServerResponse> getRoutingFunction(
+			ErrorAttributes errorAttributes);
 
 	@Override
 	public Mono<Void> handle(ServerWebExchange exchange, Throwable throwable) {
 
 		this.errorAttributes.storeErrorInformation(throwable, exchange);
 		ServerRequest request = ServerRequest.create(exchange, this.messageReaders);
-		return getRoutingFunction(this.errorAttributes)
-				.route(request)
+		return getRoutingFunction(this.errorAttributes).route(request)
 				.switchIfEmpty(Mono.error(throwable))
-				.flatMap(handler -> handler.handle(request))
-				.flatMap(response -> {
-					// force content-type since writeTo won't overwrite response header values
-					exchange.getResponse().getHeaders().setContentType(response.headers().getContentType());
+				.flatMap((handler) -> handler.handle(request)).flatMap((response) -> {
+					// force content-type since writeTo won't overwrite response header
+					// values
+					exchange.getResponse().getHeaders()
+							.setContentType(response.headers().getContentType());
 					return response.writeTo(exchange, new ServerResponse.Context() {
+
 						@Override
 						public List<HttpMessageWriter<?>> messageWriters() {
 							return AbstractErrorWebExceptionHandler.this.messageWriters;
@@ -218,7 +226,9 @@ public abstract class AbstractErrorWebExceptionHandler implements ErrorWebExcept
 						public List<ViewResolver> viewResolvers() {
 							return AbstractErrorWebExceptionHandler.this.viewResolvers;
 						}
+
 					});
 				});
 	}
+
 }

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/DefaultErrorAttributes.java

@@ -71,7 +71,8 @@ public class DefaultErrorAttributes implements ErrorAttributes {
 	}
 
 	@Override
-	public Map<String, Object> getErrorAttributes(ServerRequest request, boolean includeStackTrace) {
+	public Map<String, Object> getErrorAttributes(ServerRequest request,
+			boolean includeStackTrace) {
 		Map<String, Object> errorAttributes = new LinkedHashMap<>();
 		errorAttributes.put("timestamp", new Date());
 		errorAttributes.put("path", request.path());
@@ -90,7 +91,8 @@ public class DefaultErrorAttributes implements ErrorAttributes {
 		}
 		else {
 			errorAttributes.put("status", HttpStatus.INTERNAL_SERVER_ERROR.value());
-			errorAttributes.put("error", HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase());
+			errorAttributes.put("error",
+					HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase());
 		}
 		return errorAttributes;
 	}
@@ -115,7 +117,8 @@ public class DefaultErrorAttributes implements ErrorAttributes {
 	@Override
 	public Throwable getError(ServerRequest request) {
 		return (Throwable) request.attribute(ERROR_ATTRIBUTE)
-				.orElseThrow(() -> new IllegalStateException("Missing exception attribute in ServerWebExchange"));
+				.orElseThrow(() -> new IllegalStateException(
+						"Missing exception attribute in ServerWebExchange"));
 	}
 
 	@Override

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/DefaultErrorWebExceptionHandler.java

@@ -37,20 +37,20 @@ import org.springframework.web.reactive.function.server.RouterFunctions;
 import org.springframework.web.reactive.function.server.ServerRequest;
 import org.springframework.web.reactive.function.server.ServerResponse;
 
-
 /**
- * Basic global {@link org.springframework.web.server.WebExceptionHandler},
- * rendering {@link ErrorAttributes}.
+ * Basic global {@link org.springframework.web.server.WebExceptionHandler}, rendering
+ * {@link ErrorAttributes}.
  *
- * <p>More specific errors can be handled either using Spring WebFlux abstractions
- * (e.g. {@code @ExceptionHandler} with the annotation model) or by adding
+ * <p>
+ * More specific errors can be handled either using Spring WebFlux abstractions (e.g.
+ * {@code @ExceptionHandler} with the annotation model) or by adding
  * {@link RouterFunction} to the chain.
  *
- * <p>This implementation will render error as HTML views if the client explicitly
- * supports that media type. It attempts to resolve error views
- * using well known conventions. Will search for templates and static assets under
- * {@code '/error'} using the {@link HttpStatus status code} and the
- * {@link HttpStatus#series() status series}.
+ * <p>
+ * This implementation will render error as HTML views if the client explicitly supports
+ * that media type. It attempts to resolve error views using well known conventions. Will
+ * search for templates and static assets under {@code '/error'} using the
+ * {@link HttpStatus status code} and the {@link HttpStatus#series() status series}.
  * <p>
  * For example, an {@code HTTP 404} will search (in the specific order):
  * <ul>
@@ -62,10 +62,12 @@ import org.springframework.web.reactive.function.server.ServerResponse;
  * <li>{@code '/<static>/error/error.html'}</li>
  * </ul>
  *
- * <p>If none found, a default "Whitelabel Error" HTML view will be rendered.
+ * <p>
+ * If none found, a default "Whitelabel Error" HTML view will be rendered.
  *
- * <p>If the client doesn't support HTML, the error information will be rendered
- * as a JSON payload.
+ * <p>
+ * If the client doesn't support HTML, the error information will be rendered as a JSON
+ * payload.
  *
  * @author Brian Clozel
  * @since 2.0.0
@@ -99,10 +101,10 @@ public class DefaultErrorWebExceptionHandler extends AbstractErrorWebExceptionHa
 	}
 
 	@Override
-	protected RouterFunction<ServerResponse> getRoutingFunction(ErrorAttributes errorAttributes) {
+	protected RouterFunction<ServerResponse> getRoutingFunction(
+			ErrorAttributes errorAttributes) {
 
-		return RouterFunctions
-				.route(acceptsTextHtml(), this::renderErrorView)
+		return RouterFunctions.route(acceptsTextHtml(), this::renderErrorView)
 				.andRoute(RequestPredicates.all(), this::renderErrorResponse);
 	}
 
@@ -119,12 +121,11 @@ public class DefaultErrorWebExceptionHandler extends AbstractErrorWebExceptionHa
 		ServerResponse.BodyBuilder response = ServerResponse.status(errorStatus)
 				.contentType(MediaType.TEXT_HTML);
 
-		return Flux.just("error/" + errorStatus.toString(),
-				"error/" + SERIES_VIEWS.get(errorStatus.series()),
-				"error/error")
-				.flatMap(viewName -> renderErrorView(viewName, response, error))
-				.switchIfEmpty(renderDefaultErrorView(response, error))
-				.next();
+		return Flux
+				.just("error/" + errorStatus.toString(),
+						"error/" + SERIES_VIEWS.get(errorStatus.series()), "error/error")
+				.flatMap((viewName) -> renderErrorView(viewName, response, error))
+				.switchIfEmpty(renderDefaultErrorView(response, error)).next();
 	}
 
 	/**
@@ -146,9 +147,9 @@ public class DefaultErrorWebExceptionHandler extends AbstractErrorWebExceptionHa
 	 * @param produces the media type produced (or {@code MediaType.ALL})
 	 * @return if the stacktrace attribute should be included
 	 */
-	protected boolean isIncludeStackTrace(ServerRequest request,
-			MediaType produces) {
-		ErrorProperties.IncludeStacktrace include = this.errorProperties.getIncludeStacktrace();
+	protected boolean isIncludeStackTrace(ServerRequest request, MediaType produces) {
+		ErrorProperties.IncludeStacktrace include = this.errorProperties
+				.getIncludeStacktrace();
 		if (include == ErrorProperties.IncludeStacktrace.ALWAYS) {
 			return true;
 		}
@@ -169,17 +170,19 @@ public class DefaultErrorWebExceptionHandler extends AbstractErrorWebExceptionHa
 	}
 
 	/**
-	 * Predicate that checks whether the current request
-	 * explicitly support {@code "text/html"} media type.
-	 * <p>The "match-all" media type is not considered here.
+	 * Predicate that checks whether the current request explicitly support
+	 * {@code "text/html"} media type.
+	 * <p>
+	 * The "match-all" media type is not considered here.
 	 * @return the request predicate
 	 */
 	protected RequestPredicate acceptsTextHtml() {
-		return serverRequest -> {
+		return (serverRequest) -> {
 			List<MediaType> acceptedMediaTypes = serverRequest.headers().accept();
 			acceptedMediaTypes.remove(MediaType.ALL);
 			MediaType.sortBySpecificityAndQuality(acceptedMediaTypes);
-			return acceptedMediaTypes.stream().anyMatch(MediaType.TEXT_HTML::isCompatibleWith);
+			return acceptedMediaTypes.stream()
+					.anyMatch(MediaType.TEXT_HTML::isCompatibleWith);
 		};
 	}
 

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/ErrorAttributes.java

@@ -38,11 +38,12 @@ public interface ErrorAttributes {
 	 * @param includeStackTrace if stack trace elements should be included
 	 * @return a map of error attributes
 	 */
-	Map<String, Object> getErrorAttributes(ServerRequest request, boolean includeStackTrace);
+	Map<String, Object> getErrorAttributes(ServerRequest request,
+			boolean includeStackTrace);
 
 	/**
-	 * Return the underlying cause of the error or {@code null} if the error
-	 * cannot be extracted.
+	 * Return the underlying cause of the error or {@code null} if the error cannot be
+	 * extracted.
 	 * @param request the source ServerRequest
 	 * @return the {@link Exception} that caused the error or {@code null}
 	 */

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/ErrorWebExceptionHandler.java

@@ -19,12 +19,13 @@ package org.springframework.boot.autoconfigure.web.reactive.error;
 import org.springframework.web.server.WebExceptionHandler;
 
 /**
- * Marker interface that indicates that a {@link WebExceptionHandler}
- * is used to render errors.
+ * Marker interface that indicates that a {@link WebExceptionHandler} is used to render
+ * errors.
  *
  * @author Brian Clozel
  * @since 2.0.0
  */
+@FunctionalInterface
 public interface ErrorWebExceptionHandler extends WebExceptionHandler {
 
 }

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/ErrorWebFluxAutoConfiguration.java

@@ -39,8 +39,8 @@ import org.springframework.web.reactive.config.WebFluxConfigurer;
 import org.springframework.web.reactive.result.view.ViewResolver;
 
 /**
- * {@link EnableAutoConfiguration Auto-configuration} to render errors via a
- * WebFlux {@link org.springframework.web.server.WebExceptionHandler}.
+ * {@link EnableAutoConfiguration Auto-configuration} to render errors via a WebFlux
+ * {@link org.springframework.web.server.WebExceptionHandler}.
  *
  * @author Brian Clozel
  * @since 2.0.0
@@ -49,7 +49,7 @@ import org.springframework.web.reactive.result.view.ViewResolver;
 @ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.REACTIVE)
 @ConditionalOnClass(WebFluxConfigurer.class)
 @AutoConfigureBefore(WebFluxAutoConfiguration.class)
-@EnableConfigurationProperties({ServerProperties.class, ResourceProperties.class})
+@EnableConfigurationProperties({ ServerProperties.class, ResourceProperties.class })
 public class ErrorWebFluxAutoConfiguration {
 
 	private final ServerProperties serverProperties;
@@ -70,16 +70,18 @@ public class ErrorWebFluxAutoConfiguration {
 		this.serverProperties = serverProperties;
 		this.applicationContext = applicationContext;
 		this.resourceProperties = resourceProperties;
-		this.viewResolvers = viewResolversProvider.getIfAvailable(() -> Collections.emptyList());
+		this.viewResolvers = viewResolversProvider
+				.getIfAvailable(() -> Collections.emptyList());
 		this.serverCodecConfigurer = serverCodecConfigurer;
 	}
 
 	@Bean
 	@ConditionalOnMissingBean(value = ErrorWebExceptionHandler.class, search = SearchStrategy.CURRENT)
 	@Order(-1)
-	public ErrorWebExceptionHandler errorWebExceptionHandler(ErrorAttributes errorAttributes) {
-		DefaultErrorWebExceptionHandler exceptionHandler =
-				new DefaultErrorWebExceptionHandler(errorAttributes, this.resourceProperties,
+	public ErrorWebExceptionHandler errorWebExceptionHandler(
+			ErrorAttributes errorAttributes) {
+		DefaultErrorWebExceptionHandler exceptionHandler = new DefaultErrorWebExceptionHandler(
+				errorAttributes, this.resourceProperties,
 				this.serverProperties.getError(), this.applicationContext);
 		exceptionHandler.setViewResolvers(this.viewResolvers);
 		exceptionHandler.setMessageWriters(this.serverCodecConfigurer.getWriters());
@@ -90,7 +92,8 @@ public class ErrorWebFluxAutoConfiguration {
 	@Bean
 	@ConditionalOnMissingBean(value = ErrorAttributes.class, search = SearchStrategy.CURRENT)
 	public DefaultErrorAttributes errorAttributes() {
-		return new DefaultErrorAttributes(this.serverProperties.getError().isIncludeException());
+		return new DefaultErrorAttributes(
+				this.serverProperties.getError().isIncludeException());
 	}
 
 }

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/error/package-info.java

@@ -15,6 +15,6 @@
  */
 
 /**
- * Auto-configuration for for Spring WebFlux error handling.
+ * Auto-configuration for Spring WebFlux error handling.
  */
 package org.springframework.boot.autoconfigure.web.reactive.error;

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jdbc/DataSourceInitializerInvokerTests.java

@@ -166,7 +166,7 @@ public class DataSourceInitializerInvokerTests {
 	}
 
 	private ContextConsumer<AssertableApplicationContext> assertInitializationIsDisabled() {
-		return context -> {
+		return (context) -> {
 			assertThat(context).hasSingleBean(DataSource.class);
 			DataSource dataSource = context.getBean(DataSource.class);
 			context.publishEvent(new DataSourceSchemaCreatedEvent(dataSource));

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfigurationTests.java

@@ -224,16 +224,18 @@ public class HibernateJpaAutoConfigurationTests
 
 	@Test
 	public void providerDisablesAutoCommitIsNotConfiguredIfPropertyIsSet() {
-		contextRunner().withPropertyValues(
+		contextRunner()
+				.withPropertyValues(
 						"spring.datasource.type:" + HikariDataSource.class.getName(),
 						"spring.datasource.hikari.auto-commit:false",
-				"spring.jpa.properties.hibernate.connection.provider_disables_autocommit=false"
-		).run((context) -> {
+						"spring.jpa.properties.hibernate.connection.provider_disables_autocommit=false")
+				.run((context) -> {
 					Map<String, Object> jpaProperties = context
 							.getBean(LocalContainerEntityManagerFactoryBean.class)
 							.getJpaPropertyMap();
-			assertThat(jpaProperties).contains(entry(
-					"hibernate.connection.provider_disables_autocommit", "false"));
+					assertThat(jpaProperties).contains(
+							entry("hibernate.connection.provider_disables_autocommit",
+									"false"));
 				});
 	}
 
@@ -243,7 +245,8 @@ public class HibernateJpaAutoConfigurationTests
 				.withConfiguration(AutoConfigurations.of(JtaAutoConfiguration.class))
 				.withPropertyValues(
 						"spring.datasource.type:" + HikariDataSource.class.getName(),
-						"spring.datasource.hikari.auto-commit:false").run((context) -> {
+						"spring.datasource.hikari.auto-commit:false")
+				.run((context) -> {
 					Map<String, Object> jpaProperties = context
 							.getBean(LocalContainerEntityManagerFactoryBean.class)
 							.getJpaPropertyMap();

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/client/OAuth2ClientRegistrationRepositoryConfigurationTests.java

@@ -41,7 +41,7 @@ public class OAuth2ClientRegistrationRepositoryConfigurationTests {
 		this.contextRunner
 				.withUserConfiguration(
 						OAuth2ClientRegistrationRepositoryConfiguration.class)
-				.run(context -> assertThat(context)
+				.run((context) -> assertThat(context)
 						.doesNotHaveBean(ClientRegistrationRepository.class));
 	}
 
@@ -54,7 +54,7 @@ public class OAuth2ClientRegistrationRepositoryConfigurationTests {
 				.withPropertyValues(REGISTRATION_PREFIX + ".foo.client-id=abcd",
 						REGISTRATION_PREFIX + ".foo.client-secret=secret",
 						REGISTRATION_PREFIX + ".foo.provider=github")
-				.run(context -> {
+				.run((context) -> {
 					ClientRegistrationRepository repository = context
 							.getBean(ClientRegistrationRepository.class);
 					ClientRegistration registration = repository

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/session/SessionAutoConfigurationJdbcTests.java

@@ -54,8 +54,7 @@ public class SessionAutoConfigurationJdbcTests
 	private final WebApplicationContextRunner contextRunner = new WebApplicationContextRunner()
 			.withConfiguration(AutoConfigurations.of(DataSourceAutoConfiguration.class,
 					DataSourceTransactionManagerAutoConfiguration.class,
-					JdbcTemplateAutoConfiguration.class,
-					SessionAutoConfiguration.class))
+					JdbcTemplateAutoConfiguration.class, SessionAutoConfiguration.class))
 			.withPropertyValues("spring.datasource.generate-unique-name=true");
 
 	@Test

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/reactive/error/DefaultErrorAttributesTests.java

@@ -49,20 +49,23 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 public class DefaultErrorAttributesTests {
 
-	private static final ResponseStatusException NOT_FOUND = new ResponseStatusException(HttpStatus.NOT_FOUND);
+	private static final ResponseStatusException NOT_FOUND = new ResponseStatusException(
+			HttpStatus.NOT_FOUND);
 
 	@Rule
 	public ExpectedException thrown = ExpectedException.none();
 
 	private DefaultErrorAttributes errorAttributes = new DefaultErrorAttributes();
 
-	private List<HttpMessageReader<?>> readers = ServerCodecConfigurer.create().getReaders();
+	private List<HttpMessageReader<?>> readers = ServerCodecConfigurer.create()
+			.getReaders();
 
 	@Test
 	public void missingExceptionAttribute() throws Exception {
 		this.thrown.expect(IllegalStateException.class);
 		this.thrown.expectMessage("Missing exception attribute in ServerWebExchange");
-		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/test").build());
+		MockServerWebExchange exchange = MockServerWebExchange
+				.from(MockServerHttpRequest.get("/test").build());
 		ServerRequest request = ServerRequest.create(exchange, this.readers);
 		this.errorAttributes.getErrorAttributes(request, false);
 	}
@@ -117,7 +120,8 @@ public class DefaultErrorAttributesTests {
 		Map<String, Object> attributes = this.errorAttributes
 				.getErrorAttributes(serverRequest, false);
 		assertThat(this.errorAttributes.getError(serverRequest)).isSameAs(error);
-		assertThat(attributes.get("exception")).isEqualTo(RuntimeException.class.getName());
+		assertThat(attributes.get("exception"))
+				.isEqualTo(RuntimeException.class.getName());
 		assertThat(attributes.get("message")).isEqualTo("Test");
 	}
 
@@ -160,14 +164,15 @@ public class DefaultErrorAttributesTests {
 		Map<String, Object> attributes = this.errorAttributes
 				.getErrorAttributes(buildServerRequest(request, ex), false);
 
-		assertThat(attributes.get("message"))
-				.asString().startsWith("Validation failed for argument at index 0 in method: " +
-				"public int org.springframework.boot.autoconfigure.web.reactive.error.DefaultErrorAttributesTests" +
-				".method(java.lang.String), with 1 error(s)");
+		assertThat(attributes.get("message")).asString()
+				.startsWith("Validation failed for argument at index 0 in method: "
+						+ "public int org.springframework.boot.autoconfigure.web.reactive.error.DefaultErrorAttributesTests"
+						+ ".method(java.lang.String), with 1 error(s)");
 		assertThat(attributes.get("errors")).isEqualTo(bindingResult.getAllErrors());
 	}
 
-	private ServerRequest buildServerRequest(MockServerHttpRequest request, Throwable error) {
+	private ServerRequest buildServerRequest(MockServerHttpRequest request,
+			Throwable error) {
 		ServerWebExchange exchange = MockServerWebExchange.from(request);
 		this.errorAttributes.storeErrorInformation(error, exchange);
 		return ServerRequest.create(exchange, this.readers);

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/reactive/error/DefaultErrorWebExceptionHandlerIntegrationTest.java

@@ -74,51 +74,45 @@ public class DefaultErrorWebExceptionHandlerIntegrationTest {
 	@Test
 	public void jsonError() throws Exception {
 		load();
-		this.webTestClient.get().uri("/").exchange()
-				.expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
-				.expectBody().jsonPath("status").isEqualTo("500")
-				.jsonPath("error").isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
-				.jsonPath("path").isEqualTo(("/"))
-				.jsonPath("message").isEqualTo("Expected!")
-				.jsonPath("exception").doesNotExist()
+		this.webTestClient.get().uri("/").exchange().expectStatus()
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR).expectBody()
+				.jsonPath("status").isEqualTo("500").jsonPath("error")
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
+				.jsonPath("path").isEqualTo(("/")).jsonPath("message")
+				.isEqualTo("Expected!").jsonPath("exception").doesNotExist()
 				.jsonPath("trace").doesNotExist();
 	}
 
 	@Test
 	public void notFound() throws Exception {
 		load();
-		this.webTestClient.get().uri("/notFound").exchange()
-				.expectStatus().isEqualTo(HttpStatus.NOT_FOUND)
-				.expectBody().jsonPath("status").isEqualTo("404")
-				.jsonPath("error").isEqualTo(HttpStatus.NOT_FOUND.getReasonPhrase())
-				.jsonPath("path").isEqualTo(("/notFound"))
-				.jsonPath("exception").doesNotExist();
+		this.webTestClient.get().uri("/notFound").exchange().expectStatus()
+				.isEqualTo(HttpStatus.NOT_FOUND).expectBody().jsonPath("status")
+				.isEqualTo("404").jsonPath("error")
+				.isEqualTo(HttpStatus.NOT_FOUND.getReasonPhrase()).jsonPath("path")
+				.isEqualTo(("/notFound")).jsonPath("exception").doesNotExist();
 	}
 
 	@Test
 	public void htmlError() throws Exception {
 		load();
-		String body = this.webTestClient.get().uri("/").accept(MediaType.TEXT_HTML).exchange()
-				.expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
-				.expectHeader().contentType(MediaType.TEXT_HTML)
-				.expectBody(String.class).returnResult().getResponseBody();
+		String body = this.webTestClient.get().uri("/").accept(MediaType.TEXT_HTML)
+				.exchange().expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
+				.expectHeader().contentType(MediaType.TEXT_HTML).expectBody(String.class)
+				.returnResult().getResponseBody();
 		assertThat(body).contains("status: 500").contains("message: Expected!");
 	}
 
 	@Test
 	public void bindingResultError() throws Exception {
 		load();
-		this.webTestClient.post().uri("/bind")
-				.contentType(MediaType.APPLICATION_JSON)
-				.syncBody("{}")
-				.exchange()
-				.expectStatus().isEqualTo(HttpStatus.BAD_REQUEST)
-				.expectBody().jsonPath("status").isEqualTo("400")
-				.jsonPath("error").isEqualTo(HttpStatus.BAD_REQUEST.getReasonPhrase())
-				.jsonPath("path").isEqualTo(("/bind"))
-				.jsonPath("exception").doesNotExist()
-				.jsonPath("errors").isArray()
-				.jsonPath("message").isNotEmpty();
+		this.webTestClient.post().uri("/bind").contentType(MediaType.APPLICATION_JSON)
+				.syncBody("{}").exchange().expectStatus()
+				.isEqualTo(HttpStatus.BAD_REQUEST).expectBody().jsonPath("status")
+				.isEqualTo("400").jsonPath("error")
+				.isEqualTo(HttpStatus.BAD_REQUEST.getReasonPhrase()).jsonPath("path")
+				.isEqualTo(("/bind")).jsonPath("exception").doesNotExist()
+				.jsonPath("errors").isArray().jsonPath("message").isNotEmpty();
 
 	}
 
@@ -126,10 +120,10 @@ public class DefaultErrorWebExceptionHandlerIntegrationTest {
 	public void includeStackTraceOnParam() throws Exception {
 		load("--server.error.include-exception=true",
 				"--server.error.include-stacktrace=on-trace-param");
-		this.webTestClient.get().uri("/?trace=true").exchange()
-				.expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
-				.expectBody().jsonPath("status").isEqualTo("500")
-				.jsonPath("error").isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
+		this.webTestClient.get().uri("/?trace=true").exchange().expectStatus()
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR).expectBody()
+				.jsonPath("status").isEqualTo("500").jsonPath("error")
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
 				.jsonPath("exception").isEqualTo(IllegalStateException.class.getName())
 				.jsonPath("trace").exists();
 	}
@@ -138,10 +132,10 @@ public class DefaultErrorWebExceptionHandlerIntegrationTest {
 	public void alwaysIncludeStackTrace() throws Exception {
 		load("--server.error.include-exception=true",
 				"--server.error.include-stacktrace=always");
-		this.webTestClient.get().uri("/?trace=false").exchange()
-				.expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
-				.expectBody().jsonPath("status").isEqualTo("500")
-				.jsonPath("error").isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
+		this.webTestClient.get().uri("/?trace=false").exchange().expectStatus()
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR).expectBody()
+				.jsonPath("status").isEqualTo("500").jsonPath("error")
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
 				.jsonPath("exception").isEqualTo(IllegalStateException.class.getName())
 				.jsonPath("trace").exists();
 	}
@@ -150,10 +144,10 @@ public class DefaultErrorWebExceptionHandlerIntegrationTest {
 	public void neverIncludeStackTrace() throws Exception {
 		load("--server.error.include-exception=true",
 				"--server.error.include-stacktrace=never");
-		this.webTestClient.get().uri("/?trace=true").exchange()
-				.expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
-				.expectBody().jsonPath("status").isEqualTo("500")
-				.jsonPath("error").isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
+		this.webTestClient.get().uri("/?trace=true").exchange().expectStatus()
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR).expectBody()
+				.jsonPath("status").isEqualTo("500").jsonPath("error")
+				.isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase())
 				.jsonPath("exception").isEqualTo(IllegalStateException.class.getName())
 				.jsonPath("trace").doesNotExist();
 	}
@@ -161,21 +155,22 @@ public class DefaultErrorWebExceptionHandlerIntegrationTest {
 	@Test
 	public void statusException() throws Exception {
 		load("--server.error.include-exception=true");
-		this.webTestClient.get().uri("/badRequest").exchange()
-				.expectStatus().isEqualTo(HttpStatus.BAD_REQUEST)
-				.expectBody().jsonPath("status").isEqualTo("400")
-				.jsonPath("error").isEqualTo(HttpStatus.BAD_REQUEST.getReasonPhrase())
-				.jsonPath("exception").isEqualTo(ResponseStatusException.class.getName());
+		this.webTestClient.get().uri("/badRequest").exchange().expectStatus()
+				.isEqualTo(HttpStatus.BAD_REQUEST).expectBody().jsonPath("status")
+				.isEqualTo("400").jsonPath("error")
+				.isEqualTo(HttpStatus.BAD_REQUEST.getReasonPhrase()).jsonPath("exception")
+				.isEqualTo(ResponseStatusException.class.getName());
 	}
 
 	@Test
 	public void defaultErrorView() throws Exception {
 		load("--spring.mustache.prefix=classpath:/unknown/");
-		String body = this.webTestClient.get().uri("/").accept(MediaType.TEXT_HTML).exchange()
-				.expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
-				.expectHeader().contentType(MediaType.TEXT_HTML)
-				.expectBody(String.class).returnResult().getResponseBody();
-		assertThat(body).contains("Whitelabel Error Page").contains("<div>Expected!</div>");
+		String body = this.webTestClient.get().uri("/").accept(MediaType.TEXT_HTML)
+				.exchange().expectStatus().isEqualTo(HttpStatus.INTERNAL_SERVER_ERROR)
+				.expectHeader().contentType(MediaType.TEXT_HTML).expectBody(String.class)
+				.returnResult().getResponseBody();
+		assertThat(body).contains("Whitelabel Error Page")
+				.contains("<div>Expected!</div>");
 	}
 
 	private void load(String... arguments) {
@@ -193,9 +188,10 @@ public class DefaultErrorWebExceptionHandlerIntegrationTest {
 	@Target(ElementType.TYPE)
 	@Retention(RetentionPolicy.RUNTIME)
 	@Documented
-	@Import({ReactiveWebServerAutoConfiguration.class, HttpHandlerAutoConfiguration.class,
-			WebFluxAutoConfiguration.class, ErrorWebFluxAutoConfiguration.class,
-			PropertyPlaceholderAutoConfiguration.class})
+	@Import({ ReactiveWebServerAutoConfiguration.class,
+			HttpHandlerAutoConfiguration.class, WebFluxAutoConfiguration.class,
+			ErrorWebFluxAutoConfiguration.class,
+			PropertyPlaceholderAutoConfiguration.class })
 	private @interface MinimalWebConfiguration {
 
 	}

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/orm/jpa/TestDatabaseAutoConfigurationNoEmbeddedTests.java

@@ -51,15 +51,14 @@ public class TestDatabaseAutoConfigurationNoEmbeddedTests {
 
 	@Test
 	public void applyAnyReplace() {
-		this.contextRunner.run((context) -> {
-			assertThat(context).getFailure().isInstanceOf(BeanCreationException.class)
+		this.contextRunner.run((context) -> assertThat(context).getFailure()
+				.isInstanceOf(BeanCreationException.class)
 				.hasMessageContaining(
 						"Failed to replace DataSource with an embedded database for tests.")
 				.hasMessageContaining(
 						"If you want an embedded database please put a supported one on the classpath")
 				.hasMessageContaining(
-							"or tune the replace attribute of @AutoconfigureTestDatabase.");
-		});
+						"or tune the replace attribute of @AutoconfigureTestDatabase."));
 	}
 
 	@Test

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jdbc/metadata/DataSourcePoolMetadata.java

@@ -72,9 +72,9 @@ public interface DataSourcePoolMetadata {
 	String getValidationQuery();
 
 	/**
-	 * The default auto-commit state of connections created by this pool.
-	 * If not set ({@code null}), default is JDBC driver default
-	 * (If set to null then the java.sql.Connection.setAutoCommit(boolean) method will not be called.)
+	 * The default auto-commit state of connections created by this pool. If not set
+	 * ({@code null}), default is JDBC driver default (If set to null then the
+	 * java.sql.Connection.setAutoCommit(boolean) method will not be called.)
 	 * @return the default auto-commit state or {@code null}
 	 */
 	Boolean getDefaultAutoCommit();

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jdbc/metadata/CommonsDbcp2DataSourcePoolMetadataTests.java

@@ -85,8 +85,9 @@ public class CommonsDbcp2DataSourcePoolMetadataTests
 	public void getDefaultAutoCommit() {
 		BasicDataSource dataSource = createDataSource();
 		dataSource.setDefaultAutoCommit(false);
-		assertThat(new CommonsDbcp2DataSourcePoolMetadata(dataSource)
-				.getDefaultAutoCommit()).isFalse();
+		assertThat(
+				new CommonsDbcp2DataSourcePoolMetadata(dataSource).getDefaultAutoCommit())
+						.isFalse();
 	}
 
 	private CommonsDbcp2DataSourcePoolMetadata createDataSourceMetadata(int minSize,

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/reactive/result/view/MustacheViewTests.java

@@ -51,7 +51,8 @@ public class MustacheViewTests {
 
 	@Test
 	public void viewResolvesHandlebars() throws Exception {
-		this.exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/test").build());
+		this.exchange = MockServerWebExchange
+				.from(MockServerHttpRequest.get("/test").build());
 		MustacheView view = new MustacheView();
 		view.setCompiler(Mustache.compiler());
 		view.setUrl(this.templateUrl);