DATACMNS-330, DATACMNS-331 - More improvements on web configuration.

Reverting the registration of the DomainClassConverter as a Spring bean an prefer direct registration against the FormatterRegistry handed into addFormatters(…) of WebMvcConvfigurerAdapter. Otherwise we run into CGLib issues while enhancing the config classes.

src/main/java/org/springframework/data/web/config/SpringDataWebConfiguration.java

@@ -17,15 +17,14 @@ package org.springframework.data.web.config;
 
 import java.util.List;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.repository.support.DomainClassConverter;
 import org.springframework.data.web.PageableHandlerMethodArgumentResolver;
 import org.springframework.data.web.SortHandlerMethodArgumentResolver;
+import org.springframework.format.FormatterRegistry;
 import org.springframework.format.support.FormattingConversionService;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
@@ -40,11 +39,8 @@ import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter
 @Configuration
 class SpringDataWebConfiguration extends WebMvcConfigurerAdapter {
 
-	private static final Logger LOGGER = LoggerFactory.getLogger(SpringDataWebConfiguration.class);
-
-	@Autowired(required = false)
-	@Qualifier("mvcConversionService")
-	FormattingConversionService conversionService;
+	@Autowired
+	private ApplicationContext context;
 
 	@Bean
 	public PageableHandlerMethodArgumentResolver pageableResolver() {
@@ -56,18 +52,25 @@ class SpringDataWebConfiguration extends WebMvcConfigurerAdapter {
 		return new SortHandlerMethodArgumentResolver();
 	}
 
-	@Bean
-	public DomainClassConverter<FormattingConversionService> mvcDomainClassConverter() {
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter#addFormatters(org.springframework.format.FormatterRegistry)
+	 */
+	@Override
+	public void addFormatters(FormatterRegistry registry) {
 
-		if (conversionService == null) {
+		if (!(registry instanceof FormattingConversionService)) {
+			return;
+		}
 
-			LOGGER.warn("No default Spring MVC FormattingConversionService registered! Have you forgotten to "
-					+ "use @EnableWebMvc or register a configuration class extending WebMvcConfigurationSupport?");
+		registerDomainClassConverterFor((FormattingConversionService) registry);
+	}
 
-			return null;
-		}
+	private void registerDomainClassConverterFor(FormattingConversionService conversionService) {
 
-		return new DomainClassConverter<FormattingConversionService>(conversionService);
+		DomainClassConverter<FormattingConversionService> converter = new DomainClassConverter<FormattingConversionService>(
+				conversionService);
+		converter.setApplicationContext(context);
 	}
 
 	/* 

src/test/java/org/springframework/data/web/config/EnableSpringDataWebSupportIntegrationTests.java

@@ -64,7 +64,7 @@ public class EnableSpringDataWebSupportIntegrationTests {
 		ApplicationContext context = WebTestUtils.createApplicationContext(SampleConfig.class);
 		List<String> names = Arrays.asList(context.getBeanDefinitionNames());
 
-		assertThat(names, hasItems("pageableResolver", "sortResolver", "mvcDomainClassConverter"));
+		assertThat(names, hasItems("pageableResolver", "sortResolver"));
 
 		assertResolversRegistered(context, SortHandlerMethodArgumentResolver.class,
 				PageableHandlerMethodArgumentResolver.class);