Merge branch 'gh-4320'

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/autoconfigure/EndpointWebMvcAutoConfiguration.java

 /*
- * Copyright 2012-2015 the original author or authors.
+ * Copyright 2012-2016 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 @@ import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
 import org.springframework.boot.autoconfigure.data.rest.RepositoryRestMvcAutoConfiguration;
@@ -87,6 +88,7 @@ import org.springframework.web.servlet.DispatcherServlet;
  * @author Christian Dupuis
  * @author Andy Wilkinson
  * @author Johannes Edmeier
+ * @author Eddú Meléndez
  */
 @Configuration
 @ConditionalOnClass({ Servlet.class, DispatcherServlet.class })
@@ -198,6 +200,7 @@ public class EndpointWebMvcAutoConfiguration
 	// Put Servlets and Filters in their own nested class so they don't force early
 	// instantiation of ManagementServerProperties.
 	@Configuration
+	@ConditionalOnProperty(prefix = "management", name = "add-application-context-header", matchIfMissing = true, havingValue = "true")
 	protected static class ApplicationContextFilterConfiguration {
 
 		@Bean
@@ -222,8 +225,6 @@ public class EndpointWebMvcAutoConfiguration
 
 		private final ApplicationContext applicationContext;
 
-		private ManagementServerProperties properties;
-
 		ApplicationContextHeaderFilter(ApplicationContext applicationContext) {
 			this.applicationContext = applicationContext;
 		}
@@ -232,14 +233,7 @@ public class EndpointWebMvcAutoConfiguration
 		protected void doFilterInternal(HttpServletRequest request,
 				HttpServletResponse response, FilterChain filterChain)
 						throws ServletException, IOException {
-			if (this.properties == null) {
-				this.properties = this.applicationContext
-						.getBean(ManagementServerProperties.class);
-			}
-			if (this.properties.getAddApplicationContextHeader()) {
-				response.addHeader("X-Application-Context",
-						this.applicationContext.getId());
-			}
+			response.addHeader("X-Application-Context", this.applicationContext.getId());
 			filterChain.doFilter(request, response);
 		}
 

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/autoconfigure/EndpointWebMvcAutoConfigurationTests.java

 /*
- * Copyright 2012-2015 the original author or authors.
+ * Copyright 2012-2016 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.
@@ -98,6 +98,7 @@ import static org.mockito.Mockito.mock;
  * @author Phillip Webb
  * @author Greg Turnquist
  * @author Andy Wilkinson
+ * @author Eddú Meléndez
  */
 public class EndpointWebMvcAutoConfigurationTests {
 
@@ -136,6 +137,7 @@ public class EndpointWebMvcAutoConfigurationTests {
 		assertContent("/controller", ports.get().management, null);
 		assertContent("/endpoint", ports.get().management, null);
 		assertTrue(hasHeader("/endpoint", ports.get().server, "X-Application-Context"));
+		assertTrue(this.applicationContext.containsBean("applicationContextIdFilter"));
 		this.applicationContext.close();
 		assertAllClosed();
 	}
@@ -149,6 +151,7 @@ public class EndpointWebMvcAutoConfigurationTests {
 				EndpointWebMvcAutoConfiguration.class);
 		this.applicationContext.refresh();
 		assertFalse(hasHeader("/endpoint", ports.get().server, "X-Application-Context"));
+		assertFalse(this.applicationContext.containsBean("applicationContextIdFilter"));
 		this.applicationContext.close();
 		assertAllClosed();
 	}