Consistent configurer access in WebMvcConfigurationSupport

Issue: SPR-16017

spring-web/src/main/java/org/springframework/web/accept/ContentNegotiationManager.java

@@ -39,6 +39,7 @@ import org.springframework.web.context.request.NativeWebRequest;
  * {@code MediaTypeFileExtensionResolver} instances.
  *
  * @author Rossen Stoyanchev
+ * @author Juergen Hoeller
  * @since 3.2
  */
 public class ContentNegotiationManager implements ContentNegotiationStrategy, MediaTypeFileExtensionResolver {
@@ -65,6 +66,7 @@ public class ContentNegotiationManager implements ContentNegotiationStrategy, Me
 	 * A collection-based alternative to
 	 * {@link #ContentNegotiationManager(ContentNegotiationStrategy...)}.
 	 * @param strategies the strategies to use
+	 * @since 3.2.2
 	 */
 	public ContentNegotiationManager(Collection<ContentNegotiationStrategy> strategies) {
 		Assert.notEmpty(strategies, "At least one ContentNegotiationStrategy is expected");
@@ -95,7 +97,7 @@ public class ContentNegotiationManager implements ContentNegotiationStrategy, Me
 	/**
 	 * Find a {@code ContentNegotiationStrategy} of the given type.
 	 * @param strategyType the strategy type
-	 * @return the first matching strategy or {@code null}.
+	 * @return the first matching strategy, or {@code null} if none
 	 * @since 4.3
 	 */
 	@SuppressWarnings("unchecked")

spring-web/src/main/java/org/springframework/web/accept/ContentNegotiationManagerFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -85,6 +85,7 @@ import org.springframework.web.context.ServletContextAware;
  * extension to a MediaType. You may {@link #setUseJaf suppress} the use of JAF.
  *
  * @author Rossen Stoyanchev
+ * @author Brian Clozel
  * @since 3.2
  */
 public class ContentNegotiationManagerFactoryBean
@@ -255,8 +256,7 @@ public class ContentNegotiationManagerFactoryBean
 		if (this.favorPathExtension) {
 			PathExtensionContentNegotiationStrategy strategy;
 			if (this.servletContext != null && !isUseJafTurnedOff()) {
-				strategy = new ServletPathExtensionContentNegotiationStrategy(
-						this.servletContext, this.mediaTypes);
+				strategy = new ServletPathExtensionContentNegotiationStrategy(this.servletContext, this.mediaTypes);
 			}
 			else {
 				strategy = new PathExtensionContentNegotiationStrategy(this.mediaTypes);
@@ -269,8 +269,7 @@ public class ContentNegotiationManagerFactoryBean
 		}
 
 		if (this.favorParameter) {
-			ParameterContentNegotiationStrategy strategy =
-					new ParameterContentNegotiationStrategy(this.mediaTypes);
+			ParameterContentNegotiationStrategy strategy = new ParameterContentNegotiationStrategy(this.mediaTypes);
 			strategy.setParameterName(this.parameterName);
 			strategies.add(strategy);
 		}

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/AsyncSupportConfigurer.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.web.servlet.config.annotation;
 
 import java.util.ArrayList;
@@ -22,7 +23,6 @@ import java.util.concurrent.Callable;
 
 import org.springframework.core.task.AsyncTaskExecutor;
 import org.springframework.core.task.SimpleAsyncTaskExecutor;
-import org.springframework.util.Assert;
 import org.springframework.web.context.request.async.CallableProcessingInterceptor;
 import org.springframework.web.context.request.async.DeferredResult;
 import org.springframework.web.context.request.async.DeferredResultProcessingInterceptor;
@@ -82,7 +82,6 @@ public class AsyncSupportConfigurer {
 	 * @param interceptors the interceptors to register
 	 */
 	public AsyncSupportConfigurer registerCallableInterceptors(CallableProcessingInterceptor... interceptors) {
-		Assert.notNull(interceptors, "Interceptors are required");
 		this.callableInterceptors.addAll(Arrays.asList(interceptors));
 		return this;
 	}
@@ -93,7 +92,6 @@ public class AsyncSupportConfigurer {
 	 * @param interceptors the interceptors to register
 	 */
 	public AsyncSupportConfigurer registerDeferredResultInterceptors(DeferredResultProcessingInterceptor... interceptors) {
-		Assert.notNull(interceptors, "Interceptors are required");
 		this.deferredResultInterceptors.addAll(Arrays.asList(interceptors));
 		return this;
 	}

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/ContentNegotiationConfigurer.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.web.servlet.config.annotation;
 
 import java.util.HashMap;
@@ -32,9 +33,6 @@ import org.springframework.web.accept.PathExtensionContentNegotiationStrategy;
  * Creates a {@code ContentNegotiationManager} and configures it with
  * one or more {@link ContentNegotiationStrategy} instances.
  *
- * <p>As of 5.0 you can set the exact strategies to use via
- * {@link #strategies(List)}.
- *
  * <p>As an alternative you can also rely on the set of defaults described below
  * which can be turned on or off or customized through the methods of this
  * builder:
@@ -86,12 +84,14 @@ import org.springframework.web.accept.PathExtensionContentNegotiationStrategy;
  * of JAF.
  *
  * @author Rossen Stoyanchev
+ * @author Brian Clozel
+ * @author Juergen Hoeller
  * @since 3.2
+ * @see ContentNegotiationManagerFactoryBean
  */
 public class ContentNegotiationConfigurer {
 
-	private final ContentNegotiationManagerFactoryBean factory =
-			new ContentNegotiationManagerFactoryBean();
+	private final ContentNegotiationManagerFactoryBean factory = new ContentNegotiationManagerFactoryBean();
 
 	private final Map<String, MediaType> mediaTypes = new HashMap<String, MediaType>();
 
@@ -226,18 +226,32 @@ public class ContentNegotiationConfigurer {
 	 * Set a custom {@link ContentNegotiationStrategy} to use to determine
 	 * the content type to use when no content type is requested.
 	 * <p>By default this is not set.
-	 * @see #defaultContentType
 	 * @since 4.1.2
+	 * @see #defaultContentType
 	 */
 	public ContentNegotiationConfigurer defaultContentTypeStrategy(ContentNegotiationStrategy defaultStrategy) {
 		this.factory.setDefaultContentTypeStrategy(defaultStrategy);
 		return this;
 	}
 
-	protected ContentNegotiationManager getContentNegotiationManager() throws Exception {
+
+	/**
+	 * Build a {@link ContentNegotiationManager} based on this configurer's settings.
+	 * @since 4.3.12
+	 * @see ContentNegotiationManagerFactoryBean#getObject()
+	 */
+	protected ContentNegotiationManager buildContentNegotiationManager() {
 		this.factory.addMediaTypes(this.mediaTypes);
 		this.factory.afterPropertiesSet();
 		return this.factory.getObject();
 	}
 
+	/**
+	 * @deprecated as of 4.3.12, in favor of {@link #buildContentNegotiationManager()}
+	 */
+	@Deprecated
+	protected ContentNegotiationManager getContentNegotiationManager() throws Exception {
+		return buildContentNegotiationManager();
+	}
+
 }

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/DefaultServletHandlerConfigurer.java

@@ -16,12 +16,10 @@
 
 package org.springframework.web.servlet.config.annotation;
 
-import java.util.HashMap;
-import java.util.Map;
+import java.util.Collections;
 import javax.servlet.ServletContext;
 
 import org.springframework.util.Assert;
-import org.springframework.web.HttpRequestHandler;
 import org.springframework.web.servlet.DispatcherServlet;
 import org.springframework.web.servlet.handler.AbstractHandlerMapping;
 import org.springframework.web.servlet.handler.SimpleUrlHandlerMapping;
@@ -82,23 +80,30 @@ public class DefaultServletHandlerConfigurer {
 		this.handler.setServletContext(this.servletContext);
 	}
 
+
 	/**
 	 * Return a handler mapping instance ordered at {@link Integer#MAX_VALUE} containing the
 	 * {@link DefaultServletHttpRequestHandler} instance mapped to {@code "/**"};
 	 * or {@code null} if default servlet handling was not been enabled.
+	 * @since 4.3.12
 	 */
-	protected AbstractHandlerMapping getHandlerMapping() {
+	protected SimpleUrlHandlerMapping buildHandlerMapping() {
 		if (this.handler == null) {
 			return null;
 		}
 
-		Map<String, HttpRequestHandler> urlMap = new HashMap<String, HttpRequestHandler>();
-		urlMap.put("/**", this.handler);
-
 		SimpleUrlHandlerMapping handlerMapping = new SimpleUrlHandlerMapping();
+		handlerMapping.setUrlMap(Collections.singletonMap("/**", this.handler));
 		handlerMapping.setOrder(Integer.MAX_VALUE);
-		handlerMapping.setUrlMap(urlMap);
 		return handlerMapping;
 	}
 
+	/**
+	 * @deprecated as of 4.3.12, in favor of {@link #buildHandlerMapping()}
+	 */
+	@Deprecated
+	protected AbstractHandlerMapping getHandlerMapping() {
+		return buildHandlerMapping();
+	}
+
 }

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/PathMatchConfigurer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -78,9 +78,7 @@ public class PathMatchConfigurer {
 	 * <p>By default this is set to "false".
 	 * @see WebMvcConfigurer#configureContentNegotiation
 	 */
-	public PathMatchConfigurer setUseRegisteredSuffixPatternMatch(
-			Boolean registeredSuffixPatternMatch) {
-
+	public PathMatchConfigurer setUseRegisteredSuffixPatternMatch(Boolean registeredSuffixPatternMatch) {
 		this.registeredSuffixPatternMatch = registeredSuffixPatternMatch;
 		return this;
 	}
@@ -106,6 +104,7 @@ public class PathMatchConfigurer {
 		return this;
 	}
 
+
 	public Boolean isUseSuffixPatternMatch() {
 		return this.suffixPatternMatch;
 	}

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/ViewControllerRegistry.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -36,6 +36,8 @@ import org.springframework.web.servlet.handler.SimpleUrlHandlerMapping;
  */
 public class ViewControllerRegistry {
 
+	private ApplicationContext applicationContext;
+
 	private final List<ViewControllerRegistration> registrations = new ArrayList<ViewControllerRegistration>(4);
 
 	private final List<RedirectViewControllerRegistration> redirectRegistrations =
@@ -43,7 +45,18 @@ public class ViewControllerRegistry {
 
 	private int order = 1;
 
-	private ApplicationContext applicationContext;
+
+	/**
+	 * Class constructor with {@link ApplicationContext}.
+	 * @since 4.3.12
+	 */
+	public ViewControllerRegistry(ApplicationContext applicationContext) {
+		this.applicationContext = applicationContext;
+	}
+
+	@Deprecated
+	public ViewControllerRegistry() {
+	}
 
 
 	/**
@@ -96,19 +109,17 @@ public class ViewControllerRegistry {
 		this.order = order;
 	}
 
-	protected void setApplicationContext(ApplicationContext applicationContext) {
-		this.applicationContext = applicationContext;
-	}
-
 
 	/**
 	 * Return the {@code HandlerMapping} that contains the registered view
 	 * controller mappings, or {@code null} for no registrations.
+	 * @since 4.3.12
 	 */
-	protected AbstractHandlerMapping getHandlerMapping() {
+	protected SimpleUrlHandlerMapping buildHandlerMapping() {
 		if (this.registrations.isEmpty() && this.redirectRegistrations.isEmpty()) {
 			return null;
 		}
+
 		Map<String, Object> urlMap = new LinkedHashMap<String, Object>();
 		for (ViewControllerRegistration registration : this.registrations) {
 			urlMap.put(registration.getUrlPath(), registration.getViewController());
@@ -116,10 +127,24 @@ public class ViewControllerRegistry {
 		for (RedirectViewControllerRegistration registration : this.redirectRegistrations) {
 			urlMap.put(registration.getUrlPath(), registration.getViewController());
 		}
+
 		SimpleUrlHandlerMapping handlerMapping = new SimpleUrlHandlerMapping();
-		handlerMapping.setOrder(this.order);
 		handlerMapping.setUrlMap(urlMap);
+		handlerMapping.setOrder(this.order);
 		return handlerMapping;
 	}
 
+	/**
+	 * @deprecated as of 4.3.12, in favor of {@link #buildHandlerMapping()}
+	 */
+	@Deprecated
+	protected AbstractHandlerMapping getHandlerMapping() {
+		return buildHandlerMapping();
+	}
+
+	@Deprecated
+	protected void setApplicationContext(ApplicationContext applicationContext) {
+		this.applicationContext = applicationContext;
+	}
+
 }

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/ViewResolverRegistry.java

@@ -53,25 +53,31 @@ import org.springframework.web.servlet.view.tiles3.TilesViewResolver;
  */
 public class ViewResolverRegistry {
 
+	private ContentNegotiationManager contentNegotiationManager;
+
+	private ApplicationContext applicationContext;
+
 	private ContentNegotiatingViewResolver contentNegotiatingResolver;
 
 	private final List<ViewResolver> viewResolvers = new ArrayList<ViewResolver>(4);
 
 	private Integer order;
 
-	private ContentNegotiationManager contentNegotiationManager;
 
-	private ApplicationContext applicationContext;
-
-
-	protected void setContentNegotiationManager(ContentNegotiationManager contentNegotiationManager) {
+	/**
+	 * Class constructor with {@link ContentNegotiationManager} and {@link ApplicationContext}.
+	 * @since 4.3.12
+	 */
+	public ViewResolverRegistry(ContentNegotiationManager contentNegotiationManager, ApplicationContext context) {
 		this.contentNegotiationManager = contentNegotiationManager;
+		this.applicationContext = context;
 	}
 
-	protected void setApplicationContext(ApplicationContext applicationContext) {
-		this.applicationContext = applicationContext;
+	@Deprecated
+	public ViewResolverRegistry() {
 	}
 
+
 	/**
 	 * Whether any view resolvers have been registered.
 	 */
@@ -79,7 +85,6 @@ public class ViewResolverRegistry {
 		return (this.contentNegotiatingResolver != null || !this.viewResolvers.isEmpty());
 	}
 
-
 	/**
 	 * Enable use of a {@link ContentNegotiatingViewResolver} to front all other
 	 * configured view resolvers and select among all selected Views based on
@@ -161,7 +166,7 @@ public class ViewResolverRegistry {
 	 * {@link org.springframework.web.servlet.view.tiles3.TilesConfigurer} bean.
 	 */
 	public UrlBasedViewResolverRegistration tiles() {
-		if (this.applicationContext != null && !hasBeanOfType(TilesConfigurer.class)) {
+		if (!checkBeanOfType(TilesConfigurer.class)) {
 			throw new BeanInitializationException("In addition to a Tiles view resolver " +
 					"there must also be a single TilesConfigurer bean in this web application context " +
 					"(or its parent).");
@@ -178,7 +183,7 @@ public class ViewResolverRegistry {
 	 * {@link org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer} bean.
 	 */
 	public UrlBasedViewResolverRegistration freeMarker() {
-		if (this.applicationContext != null && !hasBeanOfType(FreeMarkerConfigurer.class)) {
+		if (!checkBeanOfType(FreeMarkerConfigurer.class)) {
 			throw new BeanInitializationException("In addition to a FreeMarker view resolver " +
 					"there must also be a single FreeMarkerConfig bean in this web application context " +
 					"(or its parent): FreeMarkerConfigurer is the usual implementation. " +
@@ -198,7 +203,7 @@ public class ViewResolverRegistry {
 	 */
 	@Deprecated
 	public UrlBasedViewResolverRegistration velocity() {
-		if (this.applicationContext != null && !hasBeanOfType(org.springframework.web.servlet.view.velocity.VelocityConfigurer.class)) {
+		if (!checkBeanOfType(org.springframework.web.servlet.view.velocity.VelocityConfigurer.class)) {
 			throw new BeanInitializationException("In addition to a Velocity view resolver " +
 					"there must also be a single VelocityConfig bean in this web application context " +
 					"(or its parent): VelocityConfigurer is the usual implementation. " +
@@ -214,7 +219,7 @@ public class ViewResolverRegistry {
 	 * prefix and a default suffix of ".tpl".
 	 */
 	public UrlBasedViewResolverRegistration groovy() {
-		if (this.applicationContext != null && !hasBeanOfType(GroovyMarkupConfigurer.class)) {
+		if (!checkBeanOfType(GroovyMarkupConfigurer.class)) {
 			throw new BeanInitializationException("In addition to a Groovy markup view resolver " +
 					"there must also be a single GroovyMarkupConfig bean in this web application context " +
 					"(or its parent): GroovyMarkupConfigurer is the usual implementation. " +
@@ -230,7 +235,7 @@ public class ViewResolverRegistry {
 	 * @since 4.2
 	 */
 	public UrlBasedViewResolverRegistration scriptTemplate() {
-		if (this.applicationContext != null && !hasBeanOfType(ScriptTemplateConfigurer.class)) {
+		if (!checkBeanOfType(ScriptTemplateConfigurer.class)) {
 			throw new BeanInitializationException("In addition to a script template view resolver " +
 					"there must also be a single ScriptTemplateConfig bean in this web application context " +
 					"(or its parent): ScriptTemplateConfigurer is the usual implementation. " +
@@ -281,11 +286,6 @@ public class ViewResolverRegistry {
 		this.order = order;
 	}
 
-	protected boolean hasBeanOfType(Class<?> beanType) {
-		return !ObjectUtils.isEmpty(BeanFactoryUtils.beanNamesForTypeIncludingAncestors(
-				this.applicationContext, beanType, false, false));
-	}
-
 
 	protected int getOrder() {
 		return (this.order != null ? this.order : Ordered.LOWEST_PRECEDENCE);
@@ -300,6 +300,28 @@ public class ViewResolverRegistry {
 		}
 	}
 
+	private boolean checkBeanOfType(Class<?> beanType) {
+		return (this.applicationContext == null ||
+				!ObjectUtils.isEmpty(BeanFactoryUtils.beanNamesForTypeIncludingAncestors(
+						this.applicationContext, beanType, false, false)));
+	}
+
+	@Deprecated
+	protected boolean hasBeanOfType(Class<?> beanType) {
+		return !ObjectUtils.isEmpty(BeanFactoryUtils.beanNamesForTypeIncludingAncestors(
+				this.applicationContext, beanType, false, false));
+	}
+
+	@Deprecated
+	protected void setContentNegotiationManager(ContentNegotiationManager contentNegotiationManager) {
+		this.contentNegotiationManager = contentNegotiationManager;
+	}
+
+	@Deprecated
+	protected void setApplicationContext(ApplicationContext applicationContext) {
+		this.applicationContext = applicationContext;
+	}
+
 
 	private static class TilesRegistration extends UrlBasedViewResolverRegistration {
 
@@ -308,6 +330,7 @@ public class ViewResolverRegistry {
 		}
 	}
 
+
 	private static class VelocityRegistration extends UrlBasedViewResolverRegistration {
 
 		@SuppressWarnings("deprecation")
@@ -317,6 +340,7 @@ public class ViewResolverRegistry {
 		}
 	}
 
+
 	private static class FreeMarkerRegistration extends UrlBasedViewResolverRegistration {
 
 		public FreeMarkerRegistration() {
@@ -325,6 +349,7 @@ public class ViewResolverRegistry {
 		}
 	}
 
+
 	private static class GroovyMarkupRegistration extends UrlBasedViewResolverRegistration {
 
 		public GroovyMarkupRegistration() {
@@ -333,6 +358,7 @@ public class ViewResolverRegistry {
 		}
 	}
 
+
 	private static class ScriptRegistration extends UrlBasedViewResolverRegistration {
 
 		public ScriptRegistration() {

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport.java

@@ -246,32 +246,32 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 	 */
 	@Bean
 	public RequestMappingHandlerMapping requestMappingHandlerMapping() {
-		RequestMappingHandlerMapping handlerMapping = createRequestMappingHandlerMapping();
-		handlerMapping.setOrder(0);
-		handlerMapping.setInterceptors(getInterceptors());
-		handlerMapping.setContentNegotiationManager(mvcContentNegotiationManager());
-		handlerMapping.setCorsConfigurations(getCorsConfigurations());
+		RequestMappingHandlerMapping mapping = createRequestMappingHandlerMapping();
+		mapping.setOrder(0);
+		mapping.setInterceptors(getInterceptors());
+		mapping.setContentNegotiationManager(mvcContentNegotiationManager());
+		mapping.setCorsConfigurations(getCorsConfigurations());
 
 		PathMatchConfigurer configurer = getPathMatchConfigurer();
 		if (configurer.isUseSuffixPatternMatch() != null) {
-			handlerMapping.setUseSuffixPatternMatch(configurer.isUseSuffixPatternMatch());
+			mapping.setUseSuffixPatternMatch(configurer.isUseSuffixPatternMatch());
 		}
 		if (configurer.isUseRegisteredSuffixPatternMatch() != null) {
-			handlerMapping.setUseRegisteredSuffixPatternMatch(configurer.isUseRegisteredSuffixPatternMatch());
+			mapping.setUseRegisteredSuffixPatternMatch(configurer.isUseRegisteredSuffixPatternMatch());
 		}
 		if (configurer.isUseTrailingSlashMatch() != null) {
-			handlerMapping.setUseTrailingSlashMatch(configurer.isUseTrailingSlashMatch());
+			mapping.setUseTrailingSlashMatch(configurer.isUseTrailingSlashMatch());
 		}
 		UrlPathHelper pathHelper = configurer.getUrlPathHelper();
 		if (pathHelper != null) {
-			handlerMapping.setUrlPathHelper(pathHelper);
+			mapping.setUrlPathHelper(pathHelper);
 		}
 		PathMatcher pathMatcher = configurer.getPathMatcher();
 		if (pathMatcher != null) {
-			handlerMapping.setPathMatcher(pathMatcher);
+			mapping.setPathMatcher(pathMatcher);
 		}
 
-		return handlerMapping;
+		return mapping;
 	}
 
 	/**
@@ -364,12 +364,7 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 			ContentNegotiationConfigurer configurer = new ContentNegotiationConfigurer(this.servletContext);
 			configurer.mediaTypes(getDefaultMediaTypes());
 			configureContentNegotiation(configurer);
-			try {
-				this.contentNegotiationManager = configurer.getContentNegotiationManager();
-			}
-			catch (Throwable ex) {
-				throw new BeanInitializationException("Could not create ContentNegotiationManager", ex);
-			}
+			this.contentNegotiationManager = configurer.buildContentNegotiationManager();
 		}
 		return this.contentNegotiationManager;
 	}
@@ -403,11 +398,10 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 	 */
 	@Bean
 	public HandlerMapping viewControllerHandlerMapping() {
-		ViewControllerRegistry registry = new ViewControllerRegistry();
-		registry.setApplicationContext(this.applicationContext);
+		ViewControllerRegistry registry = new ViewControllerRegistry(this.applicationContext);
 		addViewControllers(registry);
 
-		AbstractHandlerMapping handlerMapping = registry.getHandlerMapping();
+		AbstractHandlerMapping handlerMapping = registry.buildHandlerMapping();
 		handlerMapping = (handlerMapping != null ? handlerMapping : new EmptyHandlerMapping());
 		handlerMapping.setPathMatcher(mvcPathMatcher());
 		handlerMapping.setUrlPathHelper(mvcUrlPathHelper());
@@ -492,11 +486,11 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 	 */
 	@Bean
 	public HandlerMapping defaultServletHandlerMapping() {
-		DefaultServletHandlerConfigurer configurer = new DefaultServletHandlerConfigurer(servletContext);
+		DefaultServletHandlerConfigurer configurer = new DefaultServletHandlerConfigurer(this.servletContext);
 		configureDefaultServletHandling(configurer);
-		AbstractHandlerMapping handlerMapping = configurer.getHandlerMapping();
-		handlerMapping = handlerMapping != null ? handlerMapping : new EmptyHandlerMapping();
-		return handlerMapping;
+
+		HandlerMapping handlerMapping = configurer.buildHandlerMapping();
+		return (handlerMapping != null ? handlerMapping : new EmptyHandlerMapping());
 	}
 
 	/**
@@ -911,9 +905,8 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 	 */
 	@Bean
 	public ViewResolver mvcViewResolver() {
-		ViewResolverRegistry registry = new ViewResolverRegistry();
-		registry.setContentNegotiationManager(mvcContentNegotiationManager());
-		registry.setApplicationContext(this.applicationContext);
+		ViewResolverRegistry registry = new ViewResolverRegistry(
+				mvcContentNegotiationManager(), this.applicationContext);
 		configureViewResolvers(registry);
 
 		if (registry.getViewResolvers().isEmpty()) {

spring-webmvc/src/test/java/org/springframework/web/servlet/config/annotation/ContentNegotiationConfigurerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -42,6 +42,7 @@ public class ContentNegotiationConfigurerTests {
 
 	private MockHttpServletRequest servletRequest;
 
+
 	@Before
 	public void setup() {
 		this.servletRequest = new MockHttpServletRequest();
@@ -49,9 +50,10 @@ public class ContentNegotiationConfigurerTests {
 		this.configurer = new ContentNegotiationConfigurer(this.servletRequest.getServletContext());
 	}
 
+
 	@Test
 	public void defaultSettings() throws Exception {
-		ContentNegotiationManager manager = this.configurer.getContentNegotiationManager();
+		ContentNegotiationManager manager = this.configurer.buildContentNegotiationManager();
 
 		this.servletRequest.setRequestURI("/flower.gif");
 
@@ -74,7 +76,7 @@ public class ContentNegotiationConfigurerTests {
 	@Test
 	public void addMediaTypes() throws Exception {
 		this.configurer.mediaTypes(Collections.singletonMap("json", MediaType.APPLICATION_JSON));
-		ContentNegotiationManager manager = this.configurer.getContentNegotiationManager();
+		ContentNegotiationManager manager = this.configurer.buildContentNegotiationManager();
 
 		this.servletRequest.setRequestURI("/flower.json");
 		assertEquals(Arrays.asList(MediaType.APPLICATION_JSON), manager.resolveMediaTypes(this.webRequest));
@@ -85,7 +87,7 @@ public class ContentNegotiationConfigurerTests {
 		this.configurer.favorParameter(true);
 		this.configurer.parameterName("f");
 		this.configurer.mediaTypes(Collections.singletonMap("json", MediaType.APPLICATION_JSON));
-		ContentNegotiationManager manager = this.configurer.getContentNegotiationManager();
+		ContentNegotiationManager manager = this.configurer.buildContentNegotiationManager();
 
 		this.servletRequest.setRequestURI("/flower");
 		this.servletRequest.addParameter("f", "json");
@@ -96,7 +98,7 @@ public class ContentNegotiationConfigurerTests {
 	@Test
 	public void ignoreAcceptHeader() throws Exception {
 		this.configurer.ignoreAcceptHeader(true);
-		ContentNegotiationManager manager = this.configurer.getContentNegotiationManager();
+		ContentNegotiationManager manager = this.configurer.buildContentNegotiationManager();
 
 		this.servletRequest.setRequestURI("/flower");
 		this.servletRequest.addHeader("Accept", MediaType.IMAGE_GIF_VALUE);
@@ -107,7 +109,7 @@ public class ContentNegotiationConfigurerTests {
 	@Test
 	public void setDefaultContentType() throws Exception {
 		this.configurer.defaultContentType(MediaType.APPLICATION_JSON);
-		ContentNegotiationManager manager = this.configurer.getContentNegotiationManager();
+		ContentNegotiationManager manager = this.configurer.buildContentNegotiationManager();
 
 		assertEquals(Arrays.asList(MediaType.APPLICATION_JSON), manager.resolveMediaTypes(this.webRequest));
 	}
@@ -115,8 +117,9 @@ public class ContentNegotiationConfigurerTests {
 	@Test
 	public void setDefaultContentTypeStrategy() throws Exception {
 		this.configurer.defaultContentTypeStrategy(new FixedContentNegotiationStrategy(MediaType.APPLICATION_JSON));
-		ContentNegotiationManager manager = this.configurer.getContentNegotiationManager();
+		ContentNegotiationManager manager = this.configurer.buildContentNegotiationManager();
 
 		assertEquals(Arrays.asList(MediaType.APPLICATION_JSON), manager.resolveMediaTypes(this.webRequest));
 	}
+
 }

spring-webmvc/src/test/java/org/springframework/web/servlet/config/annotation/DefaultServletHandlerConfigurerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -43,23 +43,25 @@ public class DefaultServletHandlerConfigurerTests {
 
 	private MockHttpServletResponse response;
 
+
 	@Before
-	public void setUp() {
+	public void setup() {
 		response = new MockHttpServletResponse();
 		servletContext = new DispatchingMockServletContext();
 		configurer = new DefaultServletHandlerConfigurer(servletContext);
 	}
 
+
 	@Test
 	public void notEnabled() {
-		assertNull(configurer.getHandlerMapping());
+		assertNull(configurer.buildHandlerMapping());
 	}
 
 	@Test
 	public void enable() throws Exception {
 		configurer.enable();
-		SimpleUrlHandlerMapping getHandlerMapping = getHandlerMapping();
-		SimpleUrlHandlerMapping handlerMapping = getHandlerMapping;
+		SimpleUrlHandlerMapping getHandlerMapping = configurer.buildHandlerMapping();
+		SimpleUrlHandlerMapping handlerMapping = configurer.buildHandlerMapping();
 		DefaultServletHttpRequestHandler handler = (DefaultServletHttpRequestHandler) handlerMapping.getUrlMap().get("/**");
 
 		assertNotNull(handler);
@@ -75,7 +77,7 @@ public class DefaultServletHandlerConfigurerTests {
 	@Test
 	public void enableWithServletName() throws Exception {
 		configurer.enable("defaultServlet");
-		SimpleUrlHandlerMapping handlerMapping = getHandlerMapping();
+		SimpleUrlHandlerMapping handlerMapping = configurer.buildHandlerMapping();
 		DefaultServletHttpRequestHandler handler = (DefaultServletHttpRequestHandler) handlerMapping.getUrlMap().get("/**");
 
 		assertNotNull(handler);
@@ -88,6 +90,7 @@ public class DefaultServletHandlerConfigurerTests {
 		assertEquals("The request was not forwarded", expected, response.getForwardedUrl());
 	}
 
+
 	private static class DispatchingMockServletContext extends MockServletContext {
 
 		private String url;
@@ -99,8 +102,4 @@ public class DefaultServletHandlerConfigurerTests {
 		}
 	}
 
-	private SimpleUrlHandlerMapping getHandlerMapping() {
-		return (SimpleUrlHandlerMapping) configurer.getHandlerMapping();
-	}
-
 }