============================
CONDITIONS EVALUATION REPORT
============================


Positive matches:
-----------------

   CodecsAutoConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.http.codec.CodecConfigurer''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   CodecsAutoConfiguration.JacksonCodecConfiguration matched:
      - @ConditionalOnClass found required class ''com.fasterxml.jackson.databind.ObjectMapper''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   CodecsAutoConfiguration.JacksonCodecConfiguration#jacksonCodecCustomizer matched:
      - @ConditionalOnBean (types: com.fasterxml.jackson.databind.ObjectMapper; SearchStrategy: all) found bean ''jacksonObjectMapper'' (OnBeanCondition)

   DispatcherServletAutoConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.web.servlet.DispatcherServlet''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - found ConfigurableWebEnvironment (OnWebApplicationCondition)

   DispatcherServletAutoConfiguration.DispatcherServletConfiguration matched:
      - @ConditionalOnClass found required class ''javax.servlet.ServletRegistration''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - Default DispatcherServlet did not find dispatcher servlet beans (DispatcherServletAutoConfiguration.DefaultDispatcherServletCondition)

   DispatcherServletAutoConfiguration.DispatcherServletRegistrationConfiguration matched:
      - @ConditionalOnClass found required class ''javax.servlet.ServletRegistration''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - DispatcherServlet Registration did not find servlet registration bean (DispatcherServletAutoConfiguration.DispatcherServletRegistrationCondition)

   DispatcherServletAutoConfiguration.DispatcherServletRegistrationConfiguration#dispatcherServletRegistration matched:
      - @ConditionalOnBean (names: dispatcherServlet; types: org.springframework.web.servlet.DispatcherServlet; SearchStrategy: all) found bean ''dispatcherServlet'' (OnBeanCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration.TomcatWebServerFactoryCustomizerConfiguration matched:
      - @ConditionalOnClass found required classes ''org.apache.catalina.startup.Tomcat'', ''org.apache.coyote.UpgradeProtocol''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   ErrorMvcAutoConfiguration matched:
      - @ConditionalOnClass found required classes ''javax.servlet.Servlet'', ''org.springframework.web.servlet.DispatcherServlet''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - found ConfigurableWebEnvironment (OnWebApplicationCondition)

   ErrorMvcAutoConfiguration#basicErrorController matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.servlet.error.ErrorController; SearchStrategy: current) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration#errorAttributes matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.servlet.error.ErrorAttributes; SearchStrategy: current) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration.DefaultErrorViewResolverConfiguration#conventionErrorViewResolver matched:
      - @ConditionalOnBean (types: org.springframework.web.servlet.DispatcherServlet; SearchStrategy: all) found bean ''dispatcherServlet''; @ConditionalOnMissingBean (types: org.springframework.boot.autoconfigure.web.servlet.error.DefaultErrorViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration.WhitelabelErrorViewConfiguration matched:
      - @ConditionalOnProperty (server.error.whitelabel.enabled) matched (OnPropertyCondition)
      - ErrorTemplate Missing did not find error template view (ErrorMvcAutoConfiguration.ErrorTemplateMissingCondition)

   ErrorMvcAutoConfiguration.WhitelabelErrorViewConfiguration#beanNameViewResolver matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.BeanNameViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration.WhitelabelErrorViewConfiguration#defaultErrorView matched:
      - @ConditionalOnMissingBean (names: error; SearchStrategy: all) did not find any beans (OnBeanCondition)

   GenericCacheConfiguration matched:
      - Cache org.springframework.boot.autoconfigure.cache.GenericCacheConfiguration automatic cache type (CacheCondition)

   HttpEncodingAutoConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.web.filter.CharacterEncodingFilter''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - found ConfigurableWebEnvironment (OnWebApplicationCondition)
      - @ConditionalOnProperty (spring.http.encoding.enabled) matched (OnPropertyCondition)

   HttpEncodingAutoConfiguration#characterEncodingFilter matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.CharacterEncodingFilter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   HttpMessageConvertersAutoConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.http.converter.HttpMessageConverter''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   HttpMessageConvertersAutoConfiguration#messageConverters matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.autoconfigure.http.HttpMessageConverters; SearchStrategy: all) did not find any beans (OnBeanCondition)

   HttpMessageConvertersAutoConfiguration.StringHttpMessageConverterConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.http.converter.StringHttpMessageConverter''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   HttpMessageConvertersAutoConfiguration.StringHttpMessageConverterConfiguration#stringHttpMessageConverter matched:
      - @ConditionalOnMissingBean (types: org.springframework.http.converter.StringHttpMessageConverter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonAutoConfiguration matched:
      - @ConditionalOnClass found required class ''com.fasterxml.jackson.databind.ObjectMapper''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   JacksonAutoConfiguration.Jackson2ObjectMapperBuilderCustomizerConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.http.converter.json.Jackson2ObjectMapperBuilder''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   JacksonAutoConfiguration.JacksonObjectMapperBuilderConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.http.converter.json.Jackson2ObjectMapperBuilder''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   JacksonAutoConfiguration.JacksonObjectMapperBuilderConfiguration#jacksonObjectMapperBuilder matched:
      - @ConditionalOnMissingBean (types: org.springframework.http.converter.json.Jackson2ObjectMapperBuilder; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonAutoConfiguration.JacksonObjectMapperConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.http.converter.json.Jackson2ObjectMapperBuilder''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   JacksonAutoConfiguration.JacksonObjectMapperConfiguration#jacksonObjectMapper matched:
      - @ConditionalOnMissingBean (types: com.fasterxml.jackson.databind.ObjectMapper; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonAutoConfiguration.ParameterNamesModuleConfiguration matched:
      - @ConditionalOnClass found required class ''com.fasterxml.jackson.module.paramnames.ParameterNamesModule''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   JacksonAutoConfiguration.ParameterNamesModuleConfiguration#parameterNamesModule matched:
      - @ConditionalOnMissingBean (types: com.fasterxml.jackson.module.paramnames.ParameterNamesModule; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonHttpMessageConvertersConfiguration.MappingJackson2HttpMessageConverterConfiguration matched:
      - @ConditionalOnClass found required class ''com.fasterxml.jackson.databind.ObjectMapper''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - @ConditionalOnProperty (spring.http.converters.preferred-json-mapper=jackson) matched (OnPropertyCondition)
      - @ConditionalOnBean (types: com.fasterxml.jackson.databind.ObjectMapper; SearchStrategy: all) found bean ''jacksonObjectMapper'' (OnBeanCondition)

   JacksonHttpMessageConvertersConfiguration.MappingJackson2HttpMessageConverterConfiguration#mappingJackson2HttpMessageConverter matched:
      - @ConditionalOnMissingBean (types: org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JmxAutoConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.jmx.export.MBeanExporter''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - @ConditionalOnProperty (spring.jmx.enabled=true) matched (OnPropertyCondition)

   JmxAutoConfiguration#mbeanExporter matched:
      - @ConditionalOnMissingBean (types: org.springframework.jmx.export.MBeanExporter; SearchStrategy: current) did not find any beans (OnBeanCondition)

   JmxAutoConfiguration#mbeanServer matched:
      - @ConditionalOnMissingBean (types: javax.management.MBeanServer; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JmxAutoConfiguration#objectNamingStrategy matched:
      - @ConditionalOnMissingBean (types: org.springframework.jmx.export.naming.ObjectNamingStrategy; SearchStrategy: current) did not find any beans (OnBeanCondition)

   MultipartAutoConfiguration matched:
      - @ConditionalOnClass found required classes ''javax.servlet.Servlet'', ''org.springframework.web.multipart.support.StandardServletMultipartResolver'', ''javax.servlet.MultipartConfigElement''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - found ConfigurableWebEnvironment (OnWebApplicationCondition)
      - @ConditionalOnProperty (spring.servlet.multipart.enabled) matched (OnPropertyCondition)

   MultipartAutoConfiguration#multipartConfigElement matched:
      - @ConditionalOnMissingBean (types: javax.servlet.MultipartConfigElement,org.springframework.web.multipart.commons.CommonsMultipartResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   MultipartAutoConfiguration#multipartResolver matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.multipart.MultipartResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   NoOpCacheConfiguration matched:
      - Cache org.springframework.boot.autoconfigure.cache.NoOpCacheConfiguration automatic cache type (CacheCondition)

   PropertyPlaceholderAutoConfiguration#propertySourcesPlaceholderConfigurer matched:
      - @ConditionalOnMissingBean (types: org.springframework.context.support.PropertySourcesPlaceholderConfigurer; SearchStrategy: current) did not find any beans (OnBeanCondition)

   RestTemplateAutoConfiguration matched:
      - @ConditionalOnClass found required class ''org.springframework.web.client.RestTemplate''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   RestTemplateAutoConfiguration#restTemplateBuilder matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.client.RestTemplateBuilder; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ServletWebServerFactoryAutoConfiguration matched:
      - @ConditionalOnClass found required class ''javax.servlet.ServletRequest''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - found ConfigurableWebEnvironment (OnWebApplicationCondition)

   ServletWebServerFactoryAutoConfiguration#tomcatServletWebServerFactoryCustomizer matched:
      - @ConditionalOnClass found required class ''org.apache.catalina.startup.Tomcat''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   ServletWebServerFactoryConfiguration.EmbeddedTomcat matched:
      - @ConditionalOnClass found required classes ''javax.servlet.Servlet'', ''org.apache.catalina.startup.Tomcat'', ''org.apache.coyote.UpgradeProtocol''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.servlet.server.ServletWebServerFactory; SearchStrategy: current) did not find any beans (OnBeanCondition)

   SimpleCacheConfiguration matched:
      - Cache org.springframework.boot.autoconfigure.cache.SimpleCacheConfiguration automatic cache type (CacheCondition)

   SpringApplicationAdminJmxAutoConfiguration matched:
      - @ConditionalOnProperty (spring.application.admin.enabled=true) matched (OnPropertyCondition)

   SpringApplicationAdminJmxAutoConfiguration#springApplicationAdminRegistrar matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.admin.SpringApplicationAdminMXBeanRegistrar; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ValidationAutoConfiguration matched:
      - @ConditionalOnClass found required class ''javax.validation.executable.ExecutableValidator''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - @ConditionalOnResource found location classpath:META-INF/services/javax.validation.spi.ValidationProvider (OnResourceCondition)

   ValidationAutoConfiguration#defaultValidator matched:
      - @ConditionalOnMissingBean (types: javax.validation.Validator; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ValidationAutoConfiguration#methodValidationPostProcessor matched:
      - @ConditionalOnMissingBean (types: org.springframework.validation.beanvalidation.MethodValidationPostProcessor; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration matched:
      - @ConditionalOnClass found required classes ''javax.servlet.Servlet'', ''org.springframework.web.servlet.DispatcherServlet'', ''org.springframework.web.servlet.config.annotation.WebMvcConfigurer''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - found ConfigurableWebEnvironment (OnWebApplicationCondition)
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration#hiddenHttpMethodFilter matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.HiddenHttpMethodFilter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration#httpPutFormContentFilter matched:
      - @ConditionalOnProperty (spring.mvc.formcontent.putfilter.enabled) matched (OnPropertyCondition)
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.HttpPutFormContentFilter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#defaultViewResolver matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.InternalResourceViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#requestContextFilter matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.context.request.RequestContextListener,org.springframework.web.filter.RequestContextFilter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#viewResolver matched:
      - @ConditionalOnBean (types: org.springframework.web.servlet.ViewResolver; SearchStrategy: all) found beans ''defaultViewResolver'', ''beanNameViewResolver'', ''mvcViewResolver''; @ConditionalOnMissingBean (names: viewResolver; types: org.springframework.web.servlet.view.ContentNegotiatingViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter.FaviconConfiguration matched:
      - @ConditionalOnProperty (spring.mvc.favicon.enabled) matched (OnPropertyCondition)

   WebSocketServletAutoConfiguration matched:
      - @ConditionalOnClass found required classes ''javax.servlet.Servlet'', ''javax.websocket.server.ServerContainer''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)
      - found ConfigurableWebEnvironment (OnWebApplicationCondition)

   WebSocketServletAutoConfiguration.TomcatWebSocketConfiguration matched:
      - @ConditionalOnClass found required classes ''org.apache.catalina.startup.Tomcat'', ''org.apache.tomcat.websocket.server.WsSci''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   WebSocketServletAutoConfiguration.TomcatWebSocketConfiguration#websocketContainerCustomizer matched:
      - @ConditionalOnMissingBean (names: websocketServletWebServerCustomizer; SearchStrategy: all) did not find any beans (OnBeanCondition)


Negative matches:
-----------------

   ActiveMQAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''javax.jms.ConnectionFactory'', ''org.apache.activemq.ActiveMQConnectionFactory'' (OnClassCondition)

   AopAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.aspectj.lang.annotation.Aspect'', ''org.aspectj.lang.reflect.Advice'', ''org.aspectj.weaver.AnnotatedElement'' (OnClassCondition)

   ArtemisAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''javax.jms.ConnectionFactory'', ''org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory'' (OnClassCondition)

   BatchAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.batch.core.launch.JobLauncher'', ''org.springframework.jdbc.core.JdbcOperations'' (OnClassCondition)

   CacheAutoConfiguration:
      Did not match:
         - @ConditionalOnBean (types: org.springframework.cache.interceptor.CacheAspectSupport; SearchStrategy: all) did not find any beans of type org.springframework.cache.interceptor.CacheAspectSupport (OnBeanCondition)
      Matched:
         - @ConditionalOnClass found required class ''org.springframework.cache.CacheManager''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   CacheAutoConfiguration.CacheManagerJpaDependencyConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean'' (OnClassCondition)
         - Ancestor org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration did not match (ConditionEvaluationReport.AncestorsMatchedCondition)

   CaffeineCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.github.benmanes.caffeine.cache.Caffeine'', ''org.springframework.cache.caffeine.CaffeineCacheManager'' (OnClassCondition)

   CassandraAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.datastax.driver.core.Cluster'' (OnClassCondition)

   CassandraDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.datastax.driver.core.Cluster'', ''org.springframework.data.cassandra.core.CassandraAdminOperations'' (OnClassCondition)

   CassandraReactiveDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.datastax.driver.core.Cluster'', ''org.springframework.data.cassandra.core.ReactiveCassandraTemplate'', ''reactor.core.publisher.Flux'' (OnClassCondition)

   CassandraReactiveRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.data.cassandra.ReactiveSession'', ''org.springframework.data.cassandra.repository.ReactiveCassandraRepository'' (OnClassCondition)

   CassandraRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.datastax.driver.core.Session'', ''org.springframework.data.cassandra.repository.CassandraRepository'' (OnClassCondition)

   CloudAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.cloud.config.java.CloudScanConfiguration'' (OnClassCondition)

   CouchbaseAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.couchbase.client.java.CouchbaseBucket'', ''com.couchbase.client.java.Cluster'' (OnClassCondition)

   CouchbaseCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.couchbase.client.java.Bucket'', ''com.couchbase.client.spring.cache.CouchbaseCacheManager'' (OnClassCondition)

   CouchbaseDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.couchbase.client.java.Bucket'', ''org.springframework.data.couchbase.repository.CouchbaseRepository'' (OnClassCondition)

   CouchbaseReactiveDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.couchbase.client.java.Bucket'', ''org.springframework.data.couchbase.repository.ReactiveCouchbaseRepository'', ''reactor.core.publisher.Flux'' (OnClassCondition)

   CouchbaseReactiveRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.couchbase.client.java.Bucket'', ''org.springframework.data.couchbase.repository.ReactiveCouchbaseRepository'', ''reactor.core.publisher.Flux'' (OnClassCondition)

   CouchbaseRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.couchbase.client.java.Bucket'', ''org.springframework.data.couchbase.repository.CouchbaseRepository'' (OnClassCondition)

   DataSourceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType'' (OnClassCondition)

   DataSourceTransactionManagerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.jdbc.core.JdbcTemplate'', ''org.springframework.transaction.PlatformTransactionManager'' (OnClassCondition)

   DispatcherServletAutoConfiguration.DispatcherServletConfiguration#multipartResolver:
      Did not match:
         - @ConditionalOnBean (types: org.springframework.web.multipart.MultipartResolver; SearchStrategy: all) did not find any beans of type org.springframework.web.multipart.MultipartResolver (OnBeanCondition)

   EhCacheCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''net.sf.ehcache.Cache'', ''org.springframework.cache.ehcache.EhCacheCacheManager'' (OnClassCondition)

   ElasticsearchAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.elasticsearch.client.Client'', ''org.springframework.data.elasticsearch.client.TransportClientFactoryBean'' (OnClassCondition)

   ElasticsearchDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.elasticsearch.client.Client'', ''org.springframework.data.elasticsearch.core.ElasticsearchTemplate'' (OnClassCondition)

   ElasticsearchRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.elasticsearch.client.Client'', ''org.springframework.data.elasticsearch.repository.ElasticsearchRepository'' (OnClassCondition)

   EmbeddedLdapAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.unboundid.ldap.listener.InMemoryDirectoryServer'' (OnClassCondition)

   EmbeddedMongoAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.mongodb.MongoClient'', ''de.flapdoodle.embed.mongo.MongodStarter'' (OnClassCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration.JettyWebServerFactoryCustomizerConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.eclipse.jetty.server.Server'', ''org.eclipse.jetty.util.Loader'', ''org.eclipse.jetty.webapp.WebAppContext'' (OnClassCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration.UndertowWebServerFactoryCustomizerConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''io.undertow.Undertow'', ''org.xnio.SslClientAuthMode'' (OnClassCondition)

   ErrorWebFluxAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.web.reactive.config.WebFluxConfigurer'' (OnClassCondition)

   FlywayAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.flywaydb.core.Flyway'' (OnClassCondition)

   FreeMarkerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''freemarker.template.Configuration'', ''org.springframework.ui.freemarker.FreeMarkerConfigurationFactory'' (OnClassCondition)

   GroovyTemplateAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''groovy.text.markup.MarkupTemplateEngine'' (OnClassCondition)

   GsonAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.google.gson.Gson'' (OnClassCondition)

   GsonHttpMessageConvertersConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.google.gson.Gson'' (OnClassCondition)

   H2ConsoleAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.h2.server.web.WebServlet'' (OnClassCondition)

   HazelcastAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.hazelcast.core.HazelcastInstance'' (OnClassCondition)

   HazelcastCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.hazelcast.core.HazelcastInstance'', ''com.hazelcast.spring.cache.HazelcastCacheManager'' (OnClassCondition)

   HazelcastJpaDependencyAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.hazelcast.core.HazelcastInstance'', ''org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean'' (OnClassCondition)

   HibernateJpaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean'', ''javax.persistence.EntityManager'' (OnClassCondition)

   HttpHandlerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.web.reactive.DispatcherHandler'' (OnClassCondition)

   HypermediaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.hateoas.Resource'', ''org.springframework.plugin.core.Plugin'' (OnClassCondition)

   InfinispanCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.infinispan.spring.provider.SpringEmbeddedCacheManager'' (OnClassCondition)

   InfluxDbAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.influxdb.InfluxDB'' (OnClassCondition)

   IntegrationAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.integration.config.EnableIntegration'' (OnClassCondition)

   JCacheCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''javax.cache.Caching'', ''org.springframework.cache.jcache.JCacheCacheManager'' (OnClassCondition)

   JacksonAutoConfiguration.JodaDateTimeJacksonConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.joda.time.DateTime'', ''com.fasterxml.jackson.datatype.joda.ser.DateTimeSerializer'', ''com.fasterxml.jackson.datatype.joda.cfg.JacksonJodaDateFormat'' (OnClassCondition)

   JacksonHttpMessageConvertersConfiguration.MappingJackson2XmlHttpMessageConverterConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.fasterxml.jackson.dataformat.xml.XmlMapper'' (OnClassCondition)

   JdbcTemplateAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.jdbc.core.JdbcTemplate'' (OnClassCondition)

   JerseyAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.glassfish.jersey.server.spring.SpringComponentProvider'' (OnClassCondition)

   JestAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''io.searchbox.client.JestClient'' (OnClassCondition)

   JmsAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''javax.jms.Message'', ''org.springframework.jms.core.JmsTemplate'' (OnClassCondition)

   JndiConnectionFactoryAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.jms.core.JmsTemplate'' (OnClassCondition)

   JndiDataSourceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType'' (OnClassCondition)

   JooqAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.jooq.DSLContext'' (OnClassCondition)

   JpaRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.jpa.repository.JpaRepository'' (OnClassCondition)

   JsonbAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''javax.json.bind.Jsonb'' (OnClassCondition)

   JsonbHttpMessageConvertersConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''javax.json.bind.Jsonb'' (OnClassCondition)

   JtaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''javax.transaction.Transaction'' (OnClassCondition)

   KafkaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.kafka.core.KafkaTemplate'' (OnClassCondition)

   LdapAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.ldap.core.ContextSource'' (OnClassCondition)

   LdapDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.ldap.repository.LdapRepository'' (OnClassCondition)

   LdapRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.ldap.repository.LdapRepository'' (OnClassCondition)

   LiquibaseAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''liquibase.integration.spring.SpringLiquibase'', ''liquibase.change.DatabaseChange'' (OnClassCondition)

   MailSenderAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''javax.mail.internet.MimeMessage'', ''org.springframework.mail.MailSender'' (OnClassCondition)

   MailSenderValidatorAutoConfiguration:
      Did not match:
         - @ConditionalOnProperty (spring.mail.test-connection) did not find property ''test-connection'' (OnPropertyCondition)

   MessageSourceAutoConfiguration:
      Did not match:
         - ResourceBundle did not find bundle with basename messages (MessageSourceAutoConfiguration.ResourceBundleCondition)

   MongoAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.mongodb.MongoClient'' (OnClassCondition)

   MongoDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.mongodb.MongoClient'', ''org.springframework.data.mongodb.core.MongoTemplate'' (OnClassCondition)

   MongoReactiveAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.mongodb.reactivestreams.client.MongoClient'' (OnClassCondition)

   MongoReactiveDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.mongodb.reactivestreams.client.MongoClient'', ''org.springframework.data.mongodb.core.ReactiveMongoTemplate'' (OnClassCondition)

   MongoReactiveRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.mongodb.reactivestreams.client.MongoClient'', ''org.springframework.data.mongodb.repository.ReactiveMongoRepository'' (OnClassCondition)

   MongoRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''com.mongodb.MongoClient'', ''org.springframework.data.mongodb.repository.MongoRepository'' (OnClassCondition)

   MustacheAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.samskivert.mustache.Mustache'' (OnClassCondition)

   Neo4jDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.neo4j.ogm.session.SessionFactory'', ''org.springframework.data.neo4j.transaction.Neo4jTransactionManager'', ''org.springframework.transaction.PlatformTransactionManager'' (OnClassCondition)

   Neo4jRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.neo4j.ogm.session.Neo4jSession'', ''org.springframework.data.neo4j.repository.Neo4jRepository'' (OnClassCondition)

   OAuth2ClientAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.security.config.annotation.web.configuration.EnableWebSecurity'', ''org.springframework.security.oauth2.client.registration.ClientRegistration'' (OnClassCondition)

   PersistenceExceptionTranslationAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor'' (OnClassCondition)

   ProjectInfoAutoConfiguration#buildProperties:
      Did not match:
         - @ConditionalOnResource did not find resource ''${spring.info.build.location:classpath:META-INF/build-info.properties}'' (OnResourceCondition)

   ProjectInfoAutoConfiguration#gitProperties:
      Did not match:
         - GitResource did not find git info at classpath:git.properties (ProjectInfoAutoConfiguration.GitResourceAvailableCondition)

   QuartzAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.quartz.Scheduler'', ''org.springframework.scheduling.quartz.SchedulerFactoryBean'', ''org.springframework.transaction.PlatformTransactionManager'' (OnClassCondition)

   RabbitAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.amqp.rabbit.core.RabbitTemplate'', ''com.rabbitmq.client.Channel'' (OnClassCondition)

   ReactiveUserDetailsServiceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.security.authentication.ReactiveAuthenticationManager'' (OnClassCondition)

   ReactiveWebServerFactoryAutoConfiguration:
      Did not match:
         - not a reactive web application (OnWebApplicationCondition)
      Matched:
         - @ConditionalOnClass found required class ''org.springframework.http.ReactiveHttpInputMessage''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   ReactorCoreAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''reactor.core.publisher.Mono'', ''reactor.core.publisher.Flux'' (OnClassCondition)

   RedisAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.redis.core.RedisOperations'' (OnClassCondition)

   RedisCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.redis.connection.RedisConnectionFactory'' (OnClassCondition)

   RedisReactiveAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.data.redis.connection.ReactiveRedisConnectionFactory'', ''org.springframework.data.redis.core.ReactiveRedisTemplate'', ''reactor.core.publisher.Flux'' (OnClassCondition)

   RedisRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.redis.repository.configuration.EnableRedisRepositories'' (OnClassCondition)

   RepositoryRestMvcAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration'' (OnClassCondition)

   SecurityAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.security.authentication.DefaultAuthenticationEventPublisher'' (OnClassCondition)

   SecurityFilterAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.security.web.context.AbstractSecurityWebApplicationInitializer'', ''org.springframework.security.config.http.SessionCreationPolicy'' (OnClassCondition)

   SendGridAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''com.sendgrid.SendGrid'' (OnClassCondition)

   ServletWebServerFactoryConfiguration.EmbeddedJetty:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.eclipse.jetty.server.Server'', ''org.eclipse.jetty.util.Loader'', ''org.eclipse.jetty.webapp.WebAppContext'' (OnClassCondition)

   ServletWebServerFactoryConfiguration.EmbeddedUndertow:
      Did not match:
         - @ConditionalOnClass did not find required classes ''io.undertow.Undertow'', ''org.xnio.SslClientAuthMode'' (OnClassCondition)

   SessionAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.session.Session'' (OnClassCondition)

   SolrAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.apache.solr.client.solrj.impl.HttpSolrClient'', ''org.apache.solr.client.solrj.impl.CloudSolrClient'' (OnClassCondition)

   SolrRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.apache.solr.client.solrj.SolrClient'', ''org.springframework.data.solr.repository.SolrRepository'' (OnClassCondition)

   SpringDataWebAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.data.web.PageableHandlerMethodArgumentResolver'' (OnClassCondition)

   ThymeleafAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.thymeleaf.templatemode.TemplateMode'' (OnClassCondition)

   TransactionAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.transaction.PlatformTransactionManager'' (OnClassCondition)

   UserDetailsServiceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.security.authentication.AuthenticationManager'' (OnClassCondition)

   WebClientAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.web.reactive.function.client.WebClient'' (OnClassCondition)

   WebFluxAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.web.reactive.config.WebFluxConfigurer'' (OnClassCondition)

   WebFluxSecurityConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity'', ''org.springframework.security.web.server.WebFilterChainProxy'' (OnClassCondition)

   WebMvcAutoConfiguration.ResourceChainCustomizerConfiguration:
      Did not match:
         - @ConditionalOnEnabledResourceChain did not find class org.webjars.WebJarAssetLocator (OnEnabledResourceChainCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#beanNameViewResolver:
      Did not match:
         - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.BeanNameViewResolver; SearchStrategy: all) found beans of type ''org.springframework.web.servlet.view.BeanNameViewResolver'' beanNameViewResolver (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#localeResolver:
      Did not match:
         - @ConditionalOnProperty (spring.mvc.locale) did not find property ''locale'' (OnPropertyCondition)

   WebServicesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.ws.transport.http.MessageDispatcherServlet'' (OnClassCondition)

   WebSocketMessagingAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer'' (OnClassCondition)

   WebSocketReactiveAutoConfiguration:
      Did not match:
         - not a reactive web application (OnWebApplicationCondition)
      Matched:
         - @ConditionalOnClass found required classes ''javax.servlet.Servlet'', ''javax.websocket.server.ServerContainer''; @ConditionalOnMissingClass did not find unwanted class (OnClassCondition)

   WebSocketServletAutoConfiguration.JettyWebSocketConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer'' (OnClassCondition)

   WebSocketServletAutoConfiguration.UndertowWebSocketConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class ''io.undertow.websockets.jsr.Bootstrap'' (OnClassCondition)

   XADataSourceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes ''javax.transaction.TransactionManager'', ''org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType'' (OnClassCondition)


Exclusions:
-----------

    None


Unconditional classes:
----------------------

    org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration

    org.springframework.boot.autoconfigure.web.embedded.EmbeddedWebServerFactoryCustomizerAutoConfiguration

    org.springframework.boot.autoconfigure.security.reactive.ReactiveSecurityAutoConfiguration

    org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration

    org.springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration

/*
 * Copyright 2012-2018 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.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.autoconfigure.web.servlet;

import java.util.Arrays;
import java.util.List;

import javax.servlet.MultipartConfigElement;
import javax.servlet.ServletRegistration;

import org.springframework.beans.factory.ObjectProvider;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.AutoConfigureOrder;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionMessage;
import org.springframework.boot.autoconfigure.condition.ConditionMessage.Style;
import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
import org.springframework.boot.autoconfigure.web.ServerProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.core.type.AnnotatedTypeMetadata;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.servlet.DispatcherServlet;

/**
 * {@link EnableAutoConfiguration Auto-configuration} for the Spring
 * {@link DispatcherServlet}. Should work for a standalone application where an embedded
 * web server is already present and also for a deployable application using
 * {@link SpringBootServletInitializer}.
 *
 * @author Phillip Webb
 * @author Dave Syer
 * @author Stephane Nicoll
 * @author Brian Clozel
 */
@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE)
@Configuration
@ConditionalOnWebApplication(type = Type.SERVLET)
@ConditionalOnClass(DispatcherServlet.class)
@AutoConfigureAfter(ServletWebServerFactoryAutoConfiguration.class)
@EnableConfigurationProperties(ServerProperties.class)
public class DispatcherServletAutoConfiguration {

    /*
     * The bean name for a DispatcherServlet that will be mapped to the root URL "/"
     */
    public static final String DEFAULT_DISPATCHER_SERVLET_BEAN_NAME = "dispatcherServlet";

    /*
     * The bean name for a ServletRegistrationBean for the DispatcherServlet "/"
     */
    public static final String DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME = "dispatcherServletRegistration";

    @Configuration
    @Conditional(DefaultDispatcherServletCondition.class)
    @ConditionalOnClass(ServletRegistration.class)
    @EnableConfigurationProperties(WebMvcProperties.class)
    protected static class DispatcherServletConfiguration {

        private final WebMvcProperties webMvcProperties;

        public DispatcherServletConfiguration(WebMvcProperties webMvcProperties) {
            this.webMvcProperties = webMvcProperties;
        }

        @Bean(name = DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)
        public DispatcherServlet dispatcherServlet() {
            DispatcherServlet dispatcherServlet = new DispatcherServlet();
            dispatcherServlet.setDispatchOptionsRequest(
                    this.webMvcProperties.isDispatchOptionsRequest());
            dispatcherServlet.setDispatchTraceRequest(
                    this.webMvcProperties.isDispatchTraceRequest());
            dispatcherServlet.setThrowExceptionIfNoHandlerFound(
                    this.webMvcProperties.isThrowExceptionIfNoHandlerFound());
            return dispatcherServlet;
        }

        @Bean
        @ConditionalOnBean(MultipartResolver.class)
        @ConditionalOnMissingBean(name = DispatcherServlet.MULTIPART_RESOLVER_BEAN_NAME)
        public MultipartResolver multipartResolver(MultipartResolver resolver) {
            // Detect if the user has created a MultipartResolver but named it incorrectly
            return resolver;
        }

    }

    @Configuration
    @Conditional(DispatcherServletRegistrationCondition.class)
    @ConditionalOnClass(ServletRegistration.class)
    @EnableConfigurationProperties(WebMvcProperties.class)
    @Import(DispatcherServletConfiguration.class)
    protected static class DispatcherServletRegistrationConfiguration {

        private final ServerProperties serverProperties;

        private final WebMvcProperties webMvcProperties;

        private final MultipartConfigElement multipartConfig;

        public DispatcherServletRegistrationConfiguration(
                ServerProperties serverProperties, WebMvcProperties webMvcProperties,
                ObjectProvider<MultipartConfigElement> multipartConfigProvider) {
            this.serverProperties = serverProperties;
            this.webMvcProperties = webMvcProperties;
            this.multipartConfig = multipartConfigProvider.getIfAvailable();
        }

        @Bean(name = DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME)
        @ConditionalOnBean(value = DispatcherServlet.class, name = DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)
        public DispatcherServletRegistrationBean dispatcherServletRegistration(
                DispatcherServlet dispatcherServlet) {
            DispatcherServletRegistrationBean registration = new DispatcherServletRegistrationBean(
                    dispatcherServlet, this.serverProperties.getServlet().getPath());
            registration.setName(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME);
            registration.setLoadOnStartup(
                    this.webMvcProperties.getServlet().getLoadOnStartup());
            if (this.multipartConfig != null) {
                registration.setMultipartConfig(this.multipartConfig);
            }
            return registration;
        }

    }

    @Order(Ordered.LOWEST_PRECEDENCE - 10)
    private static class DefaultDispatcherServletCondition extends SpringBootCondition {

        @Override
        public ConditionOutcome getMatchOutcome(ConditionContext context,
                AnnotatedTypeMetadata metadata) {
            ConditionMessage.Builder message = ConditionMessage
                    .forCondition("Default DispatcherServlet");
            ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
            List<String> dispatchServletBeans = Arrays.asList(beanFactory
                    .getBeanNamesForType(DispatcherServlet.class, false, false));
            if (dispatchServletBeans.contains(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)) {
                return ConditionOutcome.noMatch(message.found("dispatcher servlet bean")
                        .items(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME));
            }
            if (beanFactory.containsBean(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)) {
                return ConditionOutcome
                        .noMatch(message.found("non dispatcher servlet bean")
                                .items(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME));
            }
            if (dispatchServletBeans.isEmpty()) {
                return ConditionOutcome
                        .match(message.didNotFind("dispatcher servlet beans").atAll());
            }
            return ConditionOutcome.match(message
                    .found("dispatcher servlet bean", "dispatcher servlet beans")
                    .items(Style.QUOTE, dispatchServletBeans)
                    .append("and none is named " + DEFAULT_DISPATCHER_SERVLET_BEAN_NAME));
        }

    }

    @Order(Ordered.LOWEST_PRECEDENCE - 10)
    private static class DispatcherServletRegistrationCondition
            extends SpringBootCondition {

        @Override
        public ConditionOutcome getMatchOutcome(ConditionContext context,
                AnnotatedTypeMetadata metadata) {
            ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
            ConditionOutcome outcome = checkDefaultDispatcherName(beanFactory);
            if (!outcome.isMatch()) {
                return outcome;
            }
            return checkServletRegistration(beanFactory);
        }

        private ConditionOutcome checkDefaultDispatcherName(
                ConfigurableListableBeanFactory beanFactory) {
            List<String> servlets = Arrays.asList(beanFactory
                    .getBeanNamesForType(DispatcherServlet.class, false, false));
            boolean containsDispatcherBean = beanFactory
                    .containsBean(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME);
            if (containsDispatcherBean
                    && !servlets.contains(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME)) {
                return ConditionOutcome
                        .noMatch(startMessage().found("non dispatcher servlet")
                                .items(DEFAULT_DISPATCHER_SERVLET_BEAN_NAME));
            }
            return ConditionOutcome.match();
        }

        private ConditionOutcome checkServletRegistration(
                ConfigurableListableBeanFactory beanFactory) {
            ConditionMessage.Builder message = startMessage();
            List<String> registrations = Arrays.asList(beanFactory
                    .getBeanNamesForType(ServletRegistrationBean.class, false, false));
            boolean containsDispatcherRegistrationBean = beanFactory
                    .containsBean(DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME);
            if (registrations.isEmpty()) {
                if (containsDispatcherRegistrationBean) {
                    return ConditionOutcome
                            .noMatch(message.found("non servlet registration bean").items(
                                    DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME));
                }
                return ConditionOutcome
                        .match(message.didNotFind("servlet registration bean").atAll());
            }
            if (registrations
                    .contains(DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME)) {
                return ConditionOutcome.noMatch(message.found("servlet registration bean")
                        .items(DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME));
            }
            if (containsDispatcherRegistrationBean) {
                return ConditionOutcome
                        .noMatch(message.found("non servlet registration bean").items(
                                DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME));
            }
            return ConditionOutcome.match(message.found("servlet registration beans")
                    .items(Style.QUOTE, registrations).append("and none is named "
                            + DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME));
        }

        private ConditionMessage.Builder startMessage() {
            return ConditionMessage.forCondition("DispatcherServlet Registration");
        }

    }

}

/*
 * Copyright 2012-2018 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.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.autoconfigure.web.servlet;

import java.time.Duration;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import java.util.Optional;

import javax.servlet.Servlet;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.ListableBeanFactory;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.AutoConfigureOrder;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProviders;
import org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration;
import org.springframework.boot.autoconfigure.validation.ValidatorAdapter;
import org.springframework.boot.autoconfigure.web.ConditionalOnEnabledResourceChain;
import org.springframework.boot.autoconfigure.web.ResourceProperties;
import org.springframework.boot.autoconfigure.web.ResourceProperties.Strategy;
import org.springframework.boot.autoconfigure.web.format.WebConversionService;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.filter.OrderedHiddenHttpMethodFilter;
import org.springframework.boot.web.servlet.filter.OrderedHttpPutFormContentFilter;
import org.springframework.boot.web.servlet.filter.OrderedRequestContextFilter;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ResourceLoaderAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.Primary;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.GenericConverter;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.format.Formatter;
import org.springframework.format.FormatterRegistry;
import org.springframework.format.support.FormattingConversionService;
import org.springframework.http.CacheControl;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.util.ClassUtils;
import org.springframework.validation.DefaultMessageCodesResolver;
import org.springframework.validation.MessageCodesResolver;
import org.springframework.validation.Validator;
import org.springframework.web.HttpMediaTypeNotAcceptableException;
import org.springframework.web.accept.ContentNegotiationManager;
import org.springframework.web.accept.ContentNegotiationStrategy;
import org.springframework.web.accept.PathExtensionContentNegotiationStrategy;
import org.springframework.web.bind.support.ConfigurableWebBindingInitializer;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextListener;
import org.springframework.web.filter.HiddenHttpMethodFilter;
import org.springframework.web.filter.HttpPutFormContentFilter;
import org.springframework.web.filter.RequestContextFilter;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.AsyncSupportConfigurer;
import org.springframework.web.servlet.config.annotation.ContentNegotiationConfigurer;
import org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.PathMatchConfigurer;
import org.springframework.web.servlet.config.annotation.ResourceChainRegistration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver;
import org.springframework.web.servlet.handler.SimpleUrlHandlerMapping;
import org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver;
import org.springframework.web.servlet.i18n.FixedLocaleResolver;
import org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
import org.springframework.web.servlet.resource.AppCacheManifestTransformer;
import org.springframework.web.servlet.resource.GzipResourceResolver;
import org.springframework.web.servlet.resource.ResourceHttpRequestHandler;
import org.springframework.web.servlet.resource.ResourceResolver;
import org.springframework.web.servlet.resource.VersionResourceResolver;
import org.springframework.web.servlet.view.BeanNameViewResolver;
import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

/**
 * {@link EnableAutoConfiguration Auto-configuration} for {@link EnableWebMvc Web MVC}.
 *
 * @author Phillip Webb
 * @author Dave Syer
 * @author Andy Wilkinson
 * @author Sébastien Deleuze
 * @author Eddú Meléndez
 * @author Stephane Nicoll
 * @author Kristine Jetzke
 * @author Bruce Brouwer
 */
@Configuration
@ConditionalOnWebApplication(type = Type.SERVLET)
@ConditionalOnClass({ Servlet.class, DispatcherServlet.class, WebMvcConfigurer.class })
@ConditionalOnMissingBean(WebMvcConfigurationSupport.class)
@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE + 10)
@AutoConfigureAfter({ DispatcherServletAutoConfiguration.class,
        ValidationAutoConfiguration.class })
public class WebMvcAutoConfiguration {

    public static final String DEFAULT_PREFIX = "";

    public static final String DEFAULT_SUFFIX = "";

    private static final String[] SERVLET_LOCATIONS = { "/" };

    @Bean
    @ConditionalOnMissingBean(HiddenHttpMethodFilter.class)
    public OrderedHiddenHttpMethodFilter hiddenHttpMethodFilter() {
        return new OrderedHiddenHttpMethodFilter();
    }

    @Bean
    @ConditionalOnMissingBean(HttpPutFormContentFilter.class)
    @ConditionalOnProperty(prefix = "spring.mvc.formcontent.putfilter", name = "enabled", matchIfMissing = true)
    public OrderedHttpPutFormContentFilter httpPutFormContentFilter() {
        return new OrderedHttpPutFormContentFilter();
    }

    // Defined as a nested config to ensure WebMvcConfigurer is not read when not
    // on the classpath
    @Configuration
    @Import(EnableWebMvcConfiguration.class)
    @EnableConfigurationProperties({ WebMvcProperties.class, ResourceProperties.class })
    @Order(0)
    public static class WebMvcAutoConfigurationAdapter
            implements WebMvcConfigurer, ResourceLoaderAware {

        private static final Log logger = LogFactory.getLog(WebMvcConfigurer.class);

        private final ResourceProperties resourceProperties;

        private final WebMvcProperties mvcProperties;

        private final ListableBeanFactory beanFactory;

        private final ObjectProvider<HttpMessageConverters> messageConvertersProvider;

        final ResourceHandlerRegistrationCustomizer resourceHandlerRegistrationCustomizer;

        private ResourceLoader resourceLoader;

        public WebMvcAutoConfigurationAdapter(ResourceProperties resourceProperties,
                WebMvcProperties mvcProperties, ListableBeanFactory beanFactory,
                ObjectProvider<HttpMessageConverters> messageConvertersProvider,
                ObjectProvider<ResourceHandlerRegistrationCustomizer> resourceHandlerRegistrationCustomizerProvider) {
            this.resourceProperties = resourceProperties;
            this.mvcProperties = mvcProperties;
            this.beanFactory = beanFactory;
            this.messageConvertersProvider = messageConvertersProvider;
            this.resourceHandlerRegistrationCustomizer = resourceHandlerRegistrationCustomizerProvider
                    .getIfAvailable();
        }

        @Override
        public void setResourceLoader(ResourceLoader resourceLoader) {
            this.resourceLoader = resourceLoader;
        }

        @Override
        public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
            this.messageConvertersProvider.ifAvailable((customConverters) -> converters
                    .addAll(customConverters.getConverters()));
        }

        @Override
        public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
            Duration timeout = this.mvcProperties.getAsync().getRequestTimeout();
            if (timeout != null) {
                configurer.setDefaultTimeout(timeout.toMillis());
            }
        }

        @Override
        public void configurePathMatch(PathMatchConfigurer configurer) {
            configurer.setUseSuffixPatternMatch(
                    this.mvcProperties.getPathmatch().isUseSuffixPattern());
            configurer.setUseRegisteredSuffixPatternMatch(
                    this.mvcProperties.getPathmatch().isUseRegisteredSuffixPattern());
        }

        @Override
        public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
            WebMvcProperties.Contentnegotiation contentnegotiation = this.mvcProperties
                    .getContentnegotiation();
            configurer.favorPathExtension(contentnegotiation.isFavorPathExtension());
            configurer.favorParameter(contentnegotiation.isFavorParameter());
            if (contentnegotiation.getParameterName() != null) {
                configurer.parameterName(contentnegotiation.getParameterName());
            }
            Map<String, MediaType> mediaTypes = this.mvcProperties.getContentnegotiation()
                    .getMediaTypes();
            mediaTypes.forEach(configurer::mediaType);
        }

        @Bean
        @ConditionalOnMissingBean
        public InternalResourceViewResolver defaultViewResolver() {
            InternalResourceViewResolver resolver = new InternalResourceViewResolver();
            resolver.setPrefix(this.mvcProperties.getView().getPrefix());
            resolver.setSuffix(this.mvcProperties.getView().getSuffix());
            return resolver;
        }

        @Bean
        @ConditionalOnBean(View.class)
        @ConditionalOnMissingBean
        public BeanNameViewResolver beanNameViewResolver() {
            BeanNameViewResolver resolver = new BeanNameViewResolver();
            resolver.setOrder(Ordered.LOWEST_PRECEDENCE - 10);
            return resolver;
        }

        @Bean
        @ConditionalOnBean(ViewResolver.class)
        @ConditionalOnMissingBean(name = "viewResolver", value = ContentNegotiatingViewResolver.class)
        public ContentNegotiatingViewResolver viewResolver(BeanFactory beanFactory) {
            ContentNegotiatingViewResolver resolver = new ContentNegotiatingViewResolver();
            resolver.setContentNegotiationManager(
                    beanFactory.getBean(ContentNegotiationManager.class));
            // ContentNegotiatingViewResolver uses all the other view resolvers to locate
            // a view so it should have a high precedence
            resolver.setOrder(Ordered.HIGHEST_PRECEDENCE);
            return resolver;
        }

        @Bean
        @ConditionalOnMissingBean
        @ConditionalOnProperty(prefix = "spring.mvc", name = "locale")
        public LocaleResolver localeResolver() {
            if (this.mvcProperties
                    .getLocaleResolver() == WebMvcProperties.LocaleResolver.FIXED) {
                return new FixedLocaleResolver(this.mvcProperties.getLocale());
            }
            AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver();
            localeResolver.setDefaultLocale(this.mvcProperties.getLocale());
            return localeResolver;
        }

        @Override
        public MessageCodesResolver getMessageCodesResolver() {
            if (this.mvcProperties.getMessageCodesResolverFormat() != null) {
                DefaultMessageCodesResolver resolver = new DefaultMessageCodesResolver();
                resolver.setMessageCodeFormatter(
                        this.mvcProperties.getMessageCodesResolverFormat());
                return resolver;
            }
            return null;
        }

        @Override
        public void addFormatters(FormatterRegistry registry) {
            for (Converter<?, ?> converter : getBeansOfType(Converter.class)) {
                registry.addConverter(converter);
            }
            for (GenericConverter converter : getBeansOfType(GenericConverter.class)) {
                registry.addConverter(converter);
            }
            for (Formatter<?> formatter : getBeansOfType(Formatter.class)) {
                registry.addFormatter(formatter);
            }
        }

        private <T> Collection<T> getBeansOfType(Class<T> type) {
            return this.beanFactory.getBeansOfType(type).values();
        }

        @Override
        public void addResourceHandlers(ResourceHandlerRegistry registry) {
            if (!this.resourceProperties.isAddMappings()) {
                logger.debug("Default resource handling disabled");
                return;
            }
            Duration cachePeriod = this.resourceProperties.getCache().getPeriod();
            CacheControl cacheControl = this.resourceProperties.getCache()
                    .getCachecontrol().toHttpCacheControl();
            if (!registry.hasMappingForPattern("/webjars/**")) {
                customizeResourceHandlerRegistration(registry
                        .addResourceHandler("/webjars/**")
                        .addResourceLocations("classpath:/META-INF/resources/webjars/")
                        .setCachePeriod(getSeconds(cachePeriod))
                        .setCacheControl(cacheControl));
            }
            String staticPathPattern = this.mvcProperties.getStaticPathPattern();
            if (!registry.hasMappingForPattern(staticPathPattern)) {
                customizeResourceHandlerRegistration(
                        registry.addResourceHandler(staticPathPattern)
                                .addResourceLocations(getResourceLocations(
                                        this.resourceProperties.getStaticLocations()))
                                .setCachePeriod(getSeconds(cachePeriod))
                                .setCacheControl(cacheControl));
            }
        }

        private Integer getSeconds(Duration cachePeriod) {
            return (cachePeriod != null) ? (int) cachePeriod.getSeconds() : null;
        }

        @Bean
        public WelcomePageHandlerMapping welcomePageHandlerMapping(
                ApplicationContext applicationContext) {
            return new WelcomePageHandlerMapping(
                    new TemplateAvailabilityProviders(applicationContext),
                    applicationContext, getWelcomePage(),
                    this.mvcProperties.getStaticPathPattern());
        }

        static String[] getResourceLocations(String[] staticLocations) {
            String[] locations = new String[staticLocations.length
                    + SERVLET_LOCATIONS.length];
            System.arraycopy(staticLocations, 0, locations, 0, staticLocations.length);
            System.arraycopy(SERVLET_LOCATIONS, 0, locations, staticLocations.length,
                    SERVLET_LOCATIONS.length);
            return locations;
        }

        private Optional<Resource> getWelcomePage() {
            String[] locations = getResourceLocations(
                    this.resourceProperties.getStaticLocations());
            return Arrays.stream(locations).map(this::getIndexHtml)
                    .filter(this::isReadable).findFirst();
        }

        private Resource getIndexHtml(String location) {
            return this.resourceLoader.getResource(location + "index.html");
        }

        private boolean isReadable(Resource resource) {
            try {
                return resource.exists() && (resource.getURL() != null);
            }
            catch (Exception ex) {
                return false;
            }
        }

        private void customizeResourceHandlerRegistration(
                ResourceHandlerRegistration registration) {
            if (this.resourceHandlerRegistrationCustomizer != null) {
                this.resourceHandlerRegistrationCustomizer.customize(registration);
            }
        }

        @Bean
        @ConditionalOnMissingBean({ RequestContextListener.class,
                RequestContextFilter.class })
        public static RequestContextFilter requestContextFilter() {
            return new OrderedRequestContextFilter();
        }

        @Configuration
        @ConditionalOnProperty(value = "spring.mvc.favicon.enabled", matchIfMissing = true)
        public static class FaviconConfiguration implements ResourceLoaderAware {

            private final ResourceProperties resourceProperties;

            private ResourceLoader resourceLoader;

            public FaviconConfiguration(ResourceProperties resourceProperties) {
                this.resourceProperties = resourceProperties;
            }

            @Override
            public void setResourceLoader(ResourceLoader resourceLoader) {
                this.resourceLoader = resourceLoader;
            }

            @Bean
            public SimpleUrlHandlerMapping faviconHandlerMapping() {
                SimpleUrlHandlerMapping mapping = new SimpleUrlHandlerMapping();
                mapping.setOrder(Ordered.HIGHEST_PRECEDENCE + 1);
                mapping.setUrlMap(Collections.singletonMap("**/favicon.ico",
                        faviconRequestHandler()));
                return mapping;
            }

            @Bean
            public ResourceHttpRequestHandler faviconRequestHandler() {
                ResourceHttpRequestHandler requestHandler = new ResourceHttpRequestHandler();
                requestHandler.setLocations(resolveFaviconLocations());
                return requestHandler;
            }

            private List<Resource> resolveFaviconLocations() {
                String[] staticLocations = getResourceLocations(
                        this.resourceProperties.getStaticLocations());
                List<Resource> locations = new ArrayList<>(staticLocations.length + 1);
                Arrays.stream(staticLocations).map(this.resourceLoader::getResource)
                        .forEach(locations::add);
                locations.add(new ClassPathResource("/"));
                return Collections.unmodifiableList(locations);
            }

        }

    }

    /**
     * Configuration equivalent to {@code @EnableWebMvc}.
     */
    @Configuration
    public static class EnableWebMvcConfiguration extends DelegatingWebMvcConfiguration {

        private final WebMvcProperties mvcProperties;

        private final ListableBeanFactory beanFactory;

        private final WebMvcRegistrations mvcRegistrations;

        public EnableWebMvcConfiguration(
                ObjectProvider<WebMvcProperties> mvcPropertiesProvider,
                ObjectProvider<WebMvcRegistrations> mvcRegistrationsProvider,
                ListableBeanFactory beanFactory) {
            this.mvcProperties = mvcPropertiesProvider.getIfAvailable();
            this.mvcRegistrations = mvcRegistrationsProvider.getIfUnique();
            this.beanFactory = beanFactory;
        }

        @Bean
        @Override
        public RequestMappingHandlerAdapter requestMappingHandlerAdapter() {
            RequestMappingHandlerAdapter adapter = super.requestMappingHandlerAdapter();
            adapter.setIgnoreDefaultModelOnRedirect(this.mvcProperties == null
                    || this.mvcProperties.isIgnoreDefaultModelOnRedirect());
            return adapter;
        }

        @Override
        protected RequestMappingHandlerAdapter createRequestMappingHandlerAdapter() {
            if (this.mvcRegistrations != null
                    && this.mvcRegistrations.getRequestMappingHandlerAdapter() != null) {
                return this.mvcRegistrations.getRequestMappingHandlerAdapter();
            }
            return super.createRequestMappingHandlerAdapter();
        }

        @Bean
        @Primary
        @Override
        public RequestMappingHandlerMapping requestMappingHandlerMapping() {
            // Must be @Primary for MvcUriComponentsBuilder to work
            return super.requestMappingHandlerMapping();
        }

        @Bean
        @Override
        public FormattingConversionService mvcConversionService() {
            WebConversionService conversionService = new WebConversionService(
                    this.mvcProperties.getDateFormat());
            addFormatters(conversionService);
            return conversionService;
        }

        @Bean
        @Override
        public Validator mvcValidator() {
            if (!ClassUtils.isPresent("javax.validation.Validator",
                    getClass().getClassLoader())) {
                return super.mvcValidator();
            }
            return ValidatorAdapter.get(getApplicationContext(), getValidator());
        }

        @Override
        protected RequestMappingHandlerMapping createRequestMappingHandlerMapping() {
            if (this.mvcRegistrations != null
                    && this.mvcRegistrations.getRequestMappingHandlerMapping() != null) {
                return this.mvcRegistrations.getRequestMappingHandlerMapping();
            }
            return super.createRequestMappingHandlerMapping();
        }

        @Override
        protected ConfigurableWebBindingInitializer getConfigurableWebBindingInitializer() {
            try {
                return this.beanFactory.getBean(ConfigurableWebBindingInitializer.class);
            }
            catch (NoSuchBeanDefinitionException ex) {
                return super.getConfigurableWebBindingInitializer();
            }
        }

        @Override
        protected ExceptionHandlerExceptionResolver createExceptionHandlerExceptionResolver() {
            if (this.mvcRegistrations != null && this.mvcRegistrations
                    .getExceptionHandlerExceptionResolver() != null) {
                return this.mvcRegistrations.getExceptionHandlerExceptionResolver();
            }
            return super.createExceptionHandlerExceptionResolver();
        }

        @Override
        protected void configureHandlerExceptionResolvers(
                List<HandlerExceptionResolver> exceptionResolvers) {
            super.configureHandlerExceptionResolvers(exceptionResolvers);
            if (exceptionResolvers.isEmpty()) {
                addDefaultHandlerExceptionResolvers(exceptionResolvers);
            }
            if (this.mvcProperties.isLogResolvedException()) {
                for (HandlerExceptionResolver resolver : exceptionResolvers) {
                    if (resolver instanceof AbstractHandlerExceptionResolver) {
                        ((AbstractHandlerExceptionResolver) resolver)
                                .setWarnLogCategory(resolver.getClass().getName());
                    }
                }
            }
        }

        @Bean
        @Override
        public ContentNegotiationManager mvcContentNegotiationManager() {
            ContentNegotiationManager manager = super.mvcContentNegotiationManager();
            List<ContentNegotiationStrategy> strategies = manager.getStrategies();
            ListIterator<ContentNegotiationStrategy> iterator = strategies.listIterator();
            while (iterator.hasNext()) {
                ContentNegotiationStrategy strategy = iterator.next();
                if (strategy instanceof PathExtensionContentNegotiationStrategy) {
                    iterator.set(new OptionalPathExtensionContentNegotiationStrategy(
                            strategy));
                }
            }
            return manager;
        }

    }

    @Configuration
    @ConditionalOnEnabledResourceChain
    static class ResourceChainCustomizerConfiguration {

        @Bean
        public ResourceChainResourceHandlerRegistrationCustomizer resourceHandlerRegistrationCustomizer() {
            return new ResourceChainResourceHandlerRegistrationCustomizer();
        }

    }

    interface ResourceHandlerRegistrationCustomizer {

        void customize(ResourceHandlerRegistration registration);

    }

    private static class ResourceChainResourceHandlerRegistrationCustomizer
            implements ResourceHandlerRegistrationCustomizer {

        @Autowired
        private ResourceProperties resourceProperties = new ResourceProperties();

        @Override
        public void customize(ResourceHandlerRegistration registration) {
            ResourceProperties.Chain properties = this.resourceProperties.getChain();
            configureResourceChain(properties,
                    registration.resourceChain(properties.isCache()));
        }

        private void configureResourceChain(ResourceProperties.Chain properties,
                ResourceChainRegistration chain) {
            Strategy strategy = properties.getStrategy();
            if (strategy.getFixed().isEnabled() || strategy.getContent().isEnabled()) {
                chain.addResolver(getVersionResourceResolver(strategy));
            }
            if (properties.isGzipped()) {
                chain.addResolver(new GzipResourceResolver());
            }
            if (properties.isHtmlApplicationCache()) {
                chain.addTransformer(new AppCacheManifestTransformer());
            }
        }

        private ResourceResolver getVersionResourceResolver(
                ResourceProperties.Strategy properties) {
            VersionResourceResolver resolver = new VersionResourceResolver();
            if (properties.getFixed().isEnabled()) {
                String version = properties.getFixed().getVersion();
                String[] paths = properties.getFixed().getPaths();
                resolver.addFixedVersionStrategy(version, paths);
            }
            if (properties.getContent().isEnabled()) {
                String[] paths = properties.getContent().getPaths();
                resolver.addContentVersionStrategy(paths);
            }
            return resolver;
        }

    }

    /**
     * Decorator to make {@link PathExtensionContentNegotiationStrategy} optional
     * depending on a request attribute.
     */
    static class OptionalPathExtensionContentNegotiationStrategy
            implements ContentNegotiationStrategy {

        private static final String SKIP_ATTRIBUTE = PathExtensionContentNegotiationStrategy.class
                .getName() + ".SKIP";

        private final ContentNegotiationStrategy delegate;

        OptionalPathExtensionContentNegotiationStrategy(
                ContentNegotiationStrategy delegate) {
            this.delegate = delegate;
        }

        @Override
        public List<MediaType> resolveMediaTypes(NativeWebRequest webRequest)
                throws HttpMediaTypeNotAcceptableException {
            Object skip = webRequest.getAttribute(SKIP_ATTRIBUTE,
                    RequestAttributes.SCOPE_REQUEST);
            if (skip != null && Boolean.parseBoolean(skip.toString())) {
                return MEDIA_TYPE_ALL_LIST;
            }
            return this.delegate.resolveMediaTypes(webRequest);
        }

    }

}

/*
 * Copyright 2012-2018 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.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.autoconfigure.web.servlet.error;

import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.Servlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.aop.framework.autoproxy.AutoProxyUtils;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionMessage;
import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
import org.springframework.boot.autoconfigure.condition.SearchStrategy;
import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProvider;
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProviders;
import org.springframework.boot.autoconfigure.web.ResourceProperties;
import org.springframework.boot.autoconfigure.web.ServerProperties;
import org.springframework.boot.autoconfigure.web.servlet.DispatcherServletPath;
import org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.server.ErrorPage;
import org.springframework.boot.web.server.ErrorPageRegistrar;
import org.springframework.boot.web.server.ErrorPageRegistry;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.boot.web.servlet.error.DefaultErrorAttributes;
import org.springframework.boot.web.servlet.error.ErrorAttributes;
import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.expression.MapAccessor;
import org.springframework.core.Ordered;
import org.springframework.core.type.AnnotatedTypeMetadata;
import org.springframework.expression.EvaluationContext;
import org.springframework.expression.Expression;
import org.springframework.expression.spel.standard.SpelExpressionParser;
import org.springframework.expression.spel.support.SimpleEvaluationContext;
import org.springframework.util.PropertyPlaceholderHelper.PlaceholderResolver;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.view.BeanNameViewResolver;
import org.springframework.web.util.HtmlUtils;

/**
 * {@link EnableAutoConfiguration Auto-configuration} to render errors via an MVC error
 * controller.
 *
 * @author Dave Syer
 * @author Andy Wilkinson
 * @author Stephane Nicoll
 */
@Configuration
@ConditionalOnWebApplication(type = Type.SERVLET)
@ConditionalOnClass({ Servlet.class, DispatcherServlet.class })
// Load before the main WebMvcAutoConfiguration so that the error View is available
@AutoConfigureBefore(WebMvcAutoConfiguration.class)
@EnableConfigurationProperties({ ServerProperties.class, ResourceProperties.class })
public class ErrorMvcAutoConfiguration {

    private final ServerProperties serverProperties;

    private final DispatcherServletPath dispatcherServletPath;

    private final List<ErrorViewResolver> errorViewResolvers;

    public ErrorMvcAutoConfiguration(ServerProperties serverProperties,
            DispatcherServletPath dispatcherServletPath,
            ObjectProvider<List<ErrorViewResolver>> errorViewResolversProvider) {
        this.serverProperties = serverProperties;
        this.dispatcherServletPath = dispatcherServletPath;
        this.errorViewResolvers = errorViewResolversProvider.getIfAvailable();
    }

    @Bean
    @ConditionalOnMissingBean(value = ErrorAttributes.class, search = SearchStrategy.CURRENT)
    public DefaultErrorAttributes errorAttributes() {
        return new DefaultErrorAttributes(
                this.serverProperties.getError().isIncludeException());
    }

    @Bean
    @ConditionalOnMissingBean(value = ErrorController.class, search = SearchStrategy.CURRENT)
    public BasicErrorController basicErrorController(ErrorAttributes errorAttributes) {
        return new BasicErrorController(errorAttributes, this.serverProperties.getError(),
                this.errorViewResolvers);
    }

    @Bean
    public ErrorPageCustomizer errorPageCustomizer() {
        return new ErrorPageCustomizer(this.serverProperties, this.dispatcherServletPath);
    }

    @Bean
    public static PreserveErrorControllerTargetClassPostProcessor preserveErrorControllerTargetClassPostProcessor() {
        return new PreserveErrorControllerTargetClassPostProcessor();
    }

    @Configuration
    static class DefaultErrorViewResolverConfiguration {

        private final ApplicationContext applicationContext;

        private final ResourceProperties resourceProperties;

        DefaultErrorViewResolverConfiguration(ApplicationContext applicationContext,
                ResourceProperties resourceProperties) {
            this.applicationContext = applicationContext;
            this.resourceProperties = resourceProperties;
        }

        @Bean
        @ConditionalOnBean(DispatcherServlet.class)
        @ConditionalOnMissingBean
        public DefaultErrorViewResolver conventionErrorViewResolver() {
            return new DefaultErrorViewResolver(this.applicationContext,
                    this.resourceProperties);
        }

    }

    @Configuration
    @ConditionalOnProperty(prefix = "server.error.whitelabel", name = "enabled", matchIfMissing = true)
    @Conditional(ErrorTemplateMissingCondition.class)
    protected static class WhitelabelErrorViewConfiguration {

        private final SpelView defaultErrorView = new SpelView(
                "<html><body><h1>Whitelabel Error Page</h1>"
                        + "<p>This application has no explicit mapping for /error, so you are seeing this as a fallback.</p>"
                        + "<div id=''created''>${timestamp}</div>"
                        + "<div>There was an unexpected error (type=${error}, status=${status}).</div>"
                        + "<div>${message}</div></body></html>");

        @Bean(name = "error")
        @ConditionalOnMissingBean(name = "error")
        public View defaultErrorView() {
            return this.defaultErrorView;
        }

        // If the user adds @EnableWebMvc then the bean name view resolver from
        // WebMvcAutoConfiguration disappears, so add it back in to avoid disappointment.
        @Bean
        @ConditionalOnMissingBean
        public BeanNameViewResolver beanNameViewResolver() {
            BeanNameViewResolver resolver = new BeanNameViewResolver();
            resolver.setOrder(Ordered.LOWEST_PRECEDENCE - 10);
            return resolver;
        }

    }

    /**
     * {@link SpringBootCondition} that matches when no error template view is detected.
     */
    private static class ErrorTemplateMissingCondition extends SpringBootCondition {

        @Override
        public ConditionOutcome getMatchOutcome(ConditionContext context,
                AnnotatedTypeMetadata metadata) {
            ConditionMessage.Builder message = ConditionMessage
                    .forCondition("ErrorTemplate Missing");
            TemplateAvailabilityProviders providers = new TemplateAvailabilityProviders(
                    context.getClassLoader());
            TemplateAvailabilityProvider provider = providers.getProvider("error",
                    context.getEnvironment(), context.getClassLoader(),
                    context.getResourceLoader());
            if (provider != null) {
                return ConditionOutcome
                        .noMatch(message.foundExactly("template from " + provider));
            }
            return ConditionOutcome
                    .match(message.didNotFind("error template view").atAll());
        }

    }

    /**
     * Simple {@link View} implementation that resolves variables as SpEL expressions.
     */
    private static class SpelView implements View {

        private static final Log logger = LogFactory.getLog(SpelView.class);

        private final NonRecursivePropertyPlaceholderHelper helper;

        private final String template;

        private volatile Map<String, Expression> expressions;

        SpelView(String template) {
            this.helper = new NonRecursivePropertyPlaceholderHelper("${", "}");
            this.template = template;
        }

        @Override
        public String getContentType() {
            return "text/html";
        }

        @Override
        public void render(Map<String, ?> model, HttpServletRequest request,
                HttpServletResponse response) throws Exception {
            if (response.isCommitted()) {
                String message = getMessage(model);
                logger.error(message);
                return;
            }
            if (response.getContentType() == null) {
                response.setContentType(getContentType());
            }
            PlaceholderResolver resolver = new ExpressionResolver(getExpressions(),
                    model);
            String result = this.helper.replacePlaceholders(this.template, resolver);
            response.getWriter().append(result);
        }

        private String getMessage(Map<String, ?> model) {
            Object path = model.get("path");
            String message = "Cannot render error page for request [" + path + "]";
            if (model.get("message") != null) {
                message += " and exception [" + model.get("message") + "]";
            }
            message += " as the response has already been committed.";
            message += " As a result, the response may have the wrong status code.";
            return message;
        }

        private Map<String, Expression> getExpressions() {
            if (this.expressions == null) {
                synchronized (this) {
                    ExpressionCollector expressionCollector = new ExpressionCollector();
                    this.helper.replacePlaceholders(this.template, expressionCollector);
                    this.expressions = expressionCollector.getExpressions();
                }
            }
            return this.expressions;
        }

    }

    /**
     * {@link PlaceholderResolver} to collect placeholder expressions.
     */
    private static class ExpressionCollector implements PlaceholderResolver {

        private final SpelExpressionParser parser = new SpelExpressionParser();

        private final Map<String, Expression> expressions = new HashMap<>();

        @Override
        public String resolvePlaceholder(String name) {
            this.expressions.put(name, this.parser.parseExpression(name));
            return null;
        }

        public Map<String, Expression> getExpressions() {
            return Collections.unmodifiableMap(this.expressions);
        }

    }

    /**
     * SpEL based {@link PlaceholderResolver}.
     */
    private static class ExpressionResolver implements PlaceholderResolver {

        private final Map<String, Expression> expressions;

        private final EvaluationContext context;

        ExpressionResolver(Map<String, Expression> expressions, Map<String, ?> map) {
            this.expressions = expressions;
            this.context = getContext(map);
        }

        private EvaluationContext getContext(Map<String, ?> map) {
            return SimpleEvaluationContext.forPropertyAccessors(new MapAccessor())
                    .withRootObject(map).build();
        }

        @Override
        public String resolvePlaceholder(String placeholderName) {
            Expression expression = this.expressions.get(placeholderName);
            Object expressionValue = (expression != null)
                    ? expression.getValue(this.context) : null;
            return escape(expressionValue);
        }

        private String escape(Object value) {
            return HtmlUtils.htmlEscape((value != null) ? value.toString() : null);
        }

    }

    /**
     * {@link WebServerFactoryCustomizer} that configures the server''s error pages.
     */
    private static class ErrorPageCustomizer implements ErrorPageRegistrar, Ordered {

        private final ServerProperties properties;

        private final DispatcherServletPath dispatcherServletPath;

        protected ErrorPageCustomizer(ServerProperties properties,
                DispatcherServletPath dispatcherServletPath) {
            this.properties = properties;
            this.dispatcherServletPath = dispatcherServletPath;
        }

        @Override
        public void registerErrorPages(ErrorPageRegistry errorPageRegistry) {
            ErrorPage errorPage = new ErrorPage(this.dispatcherServletPath
                    .getRelativePath(this.properties.getError().getPath()));
            errorPageRegistry.addErrorPages(errorPage);
        }

        @Override
        public int getOrder() {
            return 0;
        }

    }

    /**
     * {@link BeanFactoryPostProcessor} to ensure that the target class of ErrorController
     * MVC beans are preserved when using AOP.
     */
    static class PreserveErrorControllerTargetClassPostProcessor
            implements BeanFactoryPostProcessor {

        @Override
        public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
                throws BeansException {
            String[] errorControllerBeans = beanFactory
                    .getBeanNamesForType(ErrorController.class, false, false);
            for (String errorControllerBean : errorControllerBeans) {
                try {
                    beanFactory.getBeanDefinition(errorControllerBean).setAttribute(
                            AutoProxyUtils.PRESERVE_TARGET_CLASS_ATTRIBUTE, Boolean.TRUE);
                }
                catch (Throwable ex) {
                    // Ignore
                }
            }
        }

    }

}

/*
 * Copyright 2012-2018 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.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.autoconfigure.web.embedded;

import io.undertow.Undertow;
import org.apache.catalina.startup.Tomcat;
import org.apache.coyote.UpgradeProtocol;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.Loader;
import org.eclipse.jetty.webapp.WebAppContext;
import org.xnio.SslClientAuthMode;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.web.ServerProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;

/**
 * {@link EnableAutoConfiguration Auto-configuration} for embedded servlet and reactive
 * web servers customizations.
 *
 * @author Phillip Webb
 * @since 2.0.0
 */
@Configuration
@EnableConfigurationProperties(ServerProperties.class)
public class EmbeddedWebServerFactoryCustomizerAutoConfiguration {

    @ConditionalOnClass({ Tomcat.class, UpgradeProtocol.class })
    public static class TomcatWebServerFactoryCustomizerConfiguration {

        @Bean
        public TomcatWebServerFactoryCustomizer tomcatWebServerFactoryCustomizer(
                Environment environment, ServerProperties serverProperties) {
            return new TomcatWebServerFactoryCustomizer(environment, serverProperties);
        }

    }

    /**
     * Nested configuration if Jetty is being used.
     */
    @Configuration
    @ConditionalOnClass({ Server.class, Loader.class, WebAppContext.class })
    public static class JettyWebServerFactoryCustomizerConfiguration {

        @Bean
        public JettyWebServerFactoryCustomizer jettyWebServerFactoryCustomizer(
                Environment environment, ServerProperties serverProperties) {
            return new JettyWebServerFactoryCustomizer(environment, serverProperties);
        }

    }

    /**
     * Nested configuration if Undertow is being used.
     */
    @Configuration
    @ConditionalOnClass({ Undertow.class, SslClientAuthMode.class })
    public static class UndertowWebServerFactoryCustomizerConfiguration {

        @Bean
        public UndertowWebServerFactoryCustomizer undertowWebServerFactoryCustomizer(
                Environment environment, ServerProperties serverProperties) {
            return new UndertowWebServerFactoryCustomizer(environment, serverProperties);
        }

    }

}