TimeMe.java

package sample.tomcat;

import java.io.IOException;
import java.util.concurrent.TimeUnit;

import org.apache.commons.logging.LogFactory;

import org.springframework.core.io.ClassPathResource;
import org.springframework.core.type.classreading.SimpleMetadataReaderFactory;

public class TimeMe {

	private static final ClassPathResource[] RESOURCES = {
			new ClassPathResource("org/springframework/stereotype/Component.class"),
			new ClassPathResource("org/springframework/stereotype/Indexed.class"),
			new ClassPathResource("org/springframework/stereotype/Controller.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/context/MessageSourceAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/context/PropertyPlaceholderAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/context/annotation/Configuration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/AutoConfigureOrder.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/websocket/reactive/WebSocketReactiveAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/reactive/ReactiveWebServerFactoryAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/websocket/servlet/WebSocketServletAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/websocket/servlet/WebSocketServletAutoConfiguration$UndertowWebSocketConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/websocket/servlet/WebSocketServletAutoConfiguration$JettyWebSocketConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/websocket/servlet/WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/condition/ConditionalOnClass.class"),
			new ClassPathResource(
					"org/springframework/context/annotation/Conditional.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/condition/ConditionalOnWebApplication.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/AutoConfigureBefore.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryAutoConfiguration$BeanPostProcessorsRegistrar.class"),
			new ClassPathResource(
					"org/springframework/boot/context/properties/EnableConfigurationProperties.class"),
			new ClassPathResource("org/springframework/context/annotation/Import.class"),
			new ClassPathResource(
					"org/springframework/boot/context/properties/EnableConfigurationPropertiesImportSelector.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration$EmbeddedTomcat.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration$EmbeddedJetty.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration$EmbeddedUndertow.class"),
			new ClassPathResource(
					"org/springframework/boot/context/properties/EnableConfigurationPropertiesImportSelector$ConfigurationPropertiesBeanRegistrar.class"),
			new ClassPathResource(
					"org/springframework/boot/context/properties/ConfigurationPropertiesBindingPostProcessorRegistrar.class"),
			new ClassPathResource(
					"org/springframework/context/annotation/ImportBeanDefinitionRegistrar.class"),
			new ClassPathResource(
					"org/springframework/beans/factory/BeanFactoryAware.class"),
			new ClassPathResource("org/springframework/beans/factory/Aware.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/condition/ConditionalOnMissingBean.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/DispatcherServletAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/DispatcherServletAutoConfiguration$DispatcherServletRegistrationCondition.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/DispatcherServletAutoConfiguration$DefaultDispatcherServletCondition.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/DispatcherServletAutoConfiguration$DispatcherServletConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/AutoConfigureAfter.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$PreserveErrorControllerTargetClassPostProcessor.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$ErrorPageCustomizer.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$ExpressionResolver.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$ExpressionCollector.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$SpelView.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$ErrorTemplateMissingCondition.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/error/ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/condition/ConditionalOnProperty.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$OptionalPathExtensionContentNegotiationStrategy.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$ResourceChainResourceHandlerRegistrationCustomizer.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$ResourceHandlerRegistrationCustomizer.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$ResourceChainCustomizerConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration.class"),
			new ClassPathResource(
					"org/springframework/context/ResourceLoaderAware.class"),
			new ClassPathResource("org/springframework/core/annotation/Order.class"),
			new ClassPathResource(
					"org/springframework/web/servlet/config/annotation/DelegatingWebMvcConfiguration.class"),
			new ClassPathResource(
					"org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport.class"),
			new ClassPathResource(
					"org/springframework/context/ApplicationContextAware.class"),
			new ClassPathResource(
					"org/springframework/web/context/ServletContextAware.class"),
			new ClassPathResource(
					"org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport$NoOpValidator.class"),
			new ClassPathResource(
					"org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport$EmptyHandlerMapping.class"),
			new ClassPathResource(
					"org/springframework/web/servlet/config/annotation/WebMvcConfigurer.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/jmx/JmxAutoConfiguration.class"),
			new ClassPathResource("org/springframework/context/EnvironmentAware.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/CacheAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/CacheAutoConfiguration$CacheConfigurationImportSelector.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/CacheAutoConfiguration$CacheManagerValidator.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/CacheAutoConfiguration$CacheManagerJpaDependencyConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/condition/ConditionalOnBean.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/GenericCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/JCacheCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/EhCacheCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/HazelcastCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/InfinispanCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/CouchbaseCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/RedisCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/CaffeineCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/SimpleCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/cache/NoOpCacheConfiguration.class"),
			new ClassPathResource(
					"org/springframework/beans/factory/BeanClassLoaderAware.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/context/ConfigurationPropertiesAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/HttpMessageConvertersAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/HttpMessageConvertersAutoConfiguration$StringHttpMessageConverterConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/JacksonHttpMessageConvertersConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/GsonHttpMessageConvertersConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/JsonbHttpMessageConvertersConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/JacksonHttpMessageConvertersConfiguration$MappingJackson2XmlHttpMessageConverterConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/JacksonHttpMessageConvertersConfiguration$MappingJackson2HttpMessageConverterConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration$JacksonCodecConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/info/ProjectInfoAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/info/ProjectInfoAutoConfiguration$GitResourceAvailableCondition.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/mail/MailSenderValidatorAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/security/reactive/ReactiveSecurityAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/security/reactive/WebFluxSecurityConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/client/RestTemplateAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration$UndertowWebServerFactoryCustomizerConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration$JettyWebServerFactoryCustomizerConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration$TomcatWebServerFactoryCustomizerConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/HttpEncodingAutoConfiguration.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/HttpEncodingAutoConfiguration$LocaleCharsetMappingsCustomizer.class"),
			new ClassPathResource(
					"org/springframework/boot/autoconfigure/web/servlet/MultipartAutoConfiguration.class") };

	public static void main(String[] args) throws IOException {
		LogFactory.getLog(TimeMe.class);
		System.err.println(RESOURCES.length);
		SimpleMetadataReaderFactory factory = new SimpleMetadataReaderFactory();
		long t = System.nanoTime();
		for (ClassPathResource resource : RESOURCES) {
			factory.getMetadataReader(resource).getAnnotationMetadata();
		}
		System.err.println(TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - t));
	}
}