[bs-132] Actuator should use delegating version of MVC support

The delegating version delegates to other configurers, and it's what
@EnableWebMvc uses.  You effectively switch off the delegation if you
use the base class by mistake.

[Fixes #50267017] [bs-132] Static resources in /css/**
cannot be served by Actuator project

spring-bootstrap-actuator/src/main/java/org/springframework/bootstrap/actuate/autoconfigure/ActuatorWebConfiguration.java

@@ -24,7 +24,7 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.web.servlet.DispatcherServlet;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
+import org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration;
 
 import com.fasterxml.jackson.databind.SerializationFeature;
 
@@ -34,7 +34,7 @@ import com.fasterxml.jackson.databind.SerializationFeature;
  */
 @ConditionalOnClass({ Servlet.class, DispatcherServlet.class })
 @Configuration
-public class ActuatorWebConfiguration extends WebMvcConfigurationSupport {
+public class ActuatorWebConfiguration extends DelegatingWebMvcConfiguration {
 
 	@Override
 	protected void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
@@ -46,6 +46,7 @@ public class ActuatorWebConfiguration extends WebMvcConfigurationSupport {
 						SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
 			}
 		}
+		super.configureMessageConverters(converters);
 	}
 
 }

spring-bootstrap-samples/spring-bootstrap-ui-sample/pom.xml

@@ -18,6 +18,11 @@
 			<artifactId>spring-bootstrap</artifactId>
 			<version>${project.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>${project.groupId}</groupId>
+			<artifactId>spring-bootstrap-actuator</artifactId>
+			<version>${project.version}</version>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-webmvc</artifactId>

spring-bootstrap-samples/spring-bootstrap-ui-sample/src/test/resources/logging.properties

@@ -4,4 +4,3 @@ handlers = java.util.logging.ConsoleHandler
 java.util.logging.ConsoleHandler.level = FINE
 sun.net.www.protocol.http.HttpURLConnection.level = ALL
 org.springframework.bootstrap.context.annotation.level = ALL
-org.thymeleaf.level = ALL