Remove use of @Component from classes that are not scanned

Closes gh-7549

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/mvc/MvcEndpoints.java

@@ -30,7 +30,6 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.core.env.Environment;
-import org.springframework.stereotype.Component;
 
 /**
  * A registry for all {@link MvcEndpoint} beans, and a factory for a set of generic ones
@@ -39,7 +38,6 @@ import org.springframework.stereotype.Component;
  *
  * @author Dave Syer
  */
-@Component
 public class MvcEndpoints implements ApplicationContextAware, InitializingBean {
 
 	private ApplicationContext applicationContext;

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/BasicBatchConfigurer.java

@@ -32,7 +32,6 @@ import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.batch.core.repository.support.JobRepositoryFactoryBean;
 import org.springframework.jdbc.datasource.DataSourceTransactionManager;
 import org.springframework.orm.jpa.JpaTransactionManager;
-import org.springframework.stereotype.Component;
 import org.springframework.transaction.PlatformTransactionManager;
 import org.springframework.util.StringUtils;
 
@@ -42,7 +41,6 @@ import org.springframework.util.StringUtils;
  * @author Dave Syer
  * @author Andy Wilkinson
  */
-@Component
 public class BasicBatchConfigurer implements BatchConfigurer {
 
 	private static final Log logger = LogFactory.getLog(BasicBatchConfigurer.class);

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/JobLauncherCommandLineRunner.java

@@ -50,7 +50,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.context.ApplicationEventPublisherAware;
-import org.springframework.stereotype.Component;
 import org.springframework.util.PatternMatchUtils;
 import org.springframework.util.StringUtils;
 
@@ -62,7 +61,6 @@ import org.springframework.util.StringUtils;
  * @author Dave Syer
  * @author Jean-Pierre Bergamin
  */
-@Component
 public class JobLauncherCommandLineRunner
 		implements CommandLineRunner, ApplicationEventPublisherAware {
 

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/AuthenticationManagerConfiguration.java

@@ -47,7 +47,6 @@ import org.springframework.security.config.annotation.authentication.builders.Au
 import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
 import org.springframework.security.config.annotation.authentication.configurers.GlobalAuthenticationConfigurerAdapter;
 import org.springframework.security.config.annotation.authentication.configurers.provisioning.InMemoryUserDetailsManagerConfigurer;
-import org.springframework.stereotype.Component;
 import org.springframework.util.ReflectionUtils;
 
 /**
@@ -86,6 +85,11 @@ public class AuthenticationManagerConfiguration {
 		return new SpringBootAuthenticationConfigurerAdapter(securityProperties);
 	}
 
+	@Bean
+	public AuthenticationManagerConfigurationListener authenticationManagerConfigurationListener() {
+		return new AuthenticationManagerConfigurationListener();
+	}
+
 	/**
 	 * {@link GlobalAuthenticationConfigurerAdapter} to apply
 	 * {@link DefaultInMemoryUserDetailsManagerConfigurer}. We must apply
@@ -193,7 +197,6 @@ public class AuthenticationManagerConfiguration {
 	 * {@link ApplicationListener} to autowire the {@link AuthenticationEventPublisher}
 	 * into the {@link AuthenticationManager}.
 	 */
-	@Component
 	protected static class AuthenticationManagerConfigurationListener
 			implements SmartInitializingSingleton {
 

spring-boot/src/main/java/org/springframework/boot/web/support/ErrorPageFilter.java

@@ -38,7 +38,6 @@ import org.springframework.boot.web.servlet.ErrorPageRegistrar;
 import org.springframework.boot.web.servlet.ErrorPageRegistry;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
-import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 import org.springframework.web.util.NestedServletException;
 
@@ -56,7 +55,6 @@ import org.springframework.web.util.NestedServletException;
  * @author Andy Wilkinson
  * @since 1.4.0
  */
-@Component
 @Order(Ordered.HIGHEST_PRECEDENCE)
 public class ErrorPageFilter implements Filter, ErrorPageRegistry {
 

spring-boot/src/main/java/org/springframework/boot/web/support/SpringBootServletInitializer.java

@@ -31,6 +31,7 @@ import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext;
 import org.springframework.boot.web.servlet.ServletContextInitializer;
 import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.util.Assert;
@@ -126,7 +127,7 @@ public abstract class SpringBootServletInitializer implements WebApplicationInit
 						+ "configure method or add an @Configuration annotation");
 		// Ensure error pages are registered
 		if (this.registerErrorPageFilter) {
-			application.getSources().add(ErrorPageFilter.class);
+			application.getSources().add(ErrorPageFilterConfiguration.class);
 		}
 		return run(application);
 	}
@@ -174,4 +175,17 @@ public abstract class SpringBootServletInitializer implements WebApplicationInit
 		return builder;
 	}
 
+	/**
+	 * Configuration for {@link ErrorPageFilter}.
+	 */
+	@Configuration
+	static class ErrorPageFilterConfiguration {
+
+		@Bean
+		public ErrorPageFilter errorPageFilter() {
+			return new ErrorPageFilter();
+		}
+
+	}
+
 }

spring-boot/src/test/java/org/springframework/boot/web/support/SpringBootServletInitializerTests.java

@@ -25,6 +25,7 @@ import org.junit.rules.ExpectedException;
 import org.springframework.beans.DirectFieldAccessor;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.web.support.SpringBootServletInitializer.ErrorPageFilterConfiguration;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.mock.web.MockServletContext;
 import org.springframework.web.context.WebApplicationContext;
@@ -58,15 +59,15 @@ public class SpringBootServletInitializerTests {
 	public void withConfigurationAnnotation() throws Exception {
 		new WithConfigurationAnnotation()
 				.createRootApplicationContext(this.servletContext);
-		assertThat(this.application.getSources())
-				.containsOnly(WithConfigurationAnnotation.class, ErrorPageFilter.class);
+		assertThat(this.application.getSources()).containsOnly(
+				WithConfigurationAnnotation.class, ErrorPageFilterConfiguration.class);
 	}
 
 	@Test
 	public void withConfiguredSource() throws Exception {
 		new WithConfiguredSource().createRootApplicationContext(this.servletContext);
 		assertThat(this.application.getSources()).containsOnly(Config.class,
-				ErrorPageFilter.class);
+				ErrorPageFilterConfiguration.class);
 	}
 
 	@Test