Apply PathPatternParser also to BeanNameUrlHandlerMapping

Closes gh-26414

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

 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -514,6 +514,16 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 
 		BeanNameUrlHandlerMapping mapping = new BeanNameUrlHandlerMapping();
 		mapping.setOrder(2);
+
+		PathMatchConfigurer pathConfig = getPathMatchConfigurer();
+		if (pathConfig.getPatternParser() != null) {
+			mapping.setPatternParser(pathConfig.getPatternParser());
+		}
+		else {
+			mapping.setUrlPathHelper(pathConfig.getUrlPathHelperOrDefault());
+			mapping.setPathMatcher(pathConfig.getPathMatcherOrDefault());
+		}
+
 		mapping.setInterceptors(getInterceptors(conversionService, resourceUrlProvider));
 		mapping.setCorsConfigurations(getCorsConfigurations());
 		return mapping;

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

 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -38,6 +38,7 @@ import org.springframework.web.context.support.GenericWebApplicationContext;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
 import org.springframework.web.servlet.HandlerExceptionResolver;
+import org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping;
 import org.springframework.web.servlet.handler.HandlerExceptionResolverComposite;
 import org.springframework.web.servlet.handler.SimpleUrlHandlerMapping;
 import org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver;
@@ -332,6 +333,14 @@ public class DelegatingWebMvcConfigurationTests {
 		assertThat(mapping.getPatternParser()).isSameAs(patternParser);
 		configAssertion.accept(mapping.getUrlPathHelper(), mapping.getPathMatcher());
 
+		BeanNameUrlHandlerMapping beanNameMapping = webMvcConfig.beanNameHandlerMapping(
+				webMvcConfig.mvcConversionService(),
+				webMvcConfig.mvcResourceUrlProvider());
+
+		assertThat(beanNameMapping).isNotNull();
+		assertThat(beanNameMapping.getPatternParser()).isSameAs(patternParser);
+		configAssertion.accept(beanNameMapping.getUrlPathHelper(), mapping.getPathMatcher());
+
 		assertThat(webMvcConfig.mvcResourceUrlProvider().getUrlPathHelper()).isSameAs(pathHelper);
 		assertThat(webMvcConfig.mvcResourceUrlProvider().getPathMatcher()).isSameAs(pathMatcher);
 	}