Spring.ioで作成した #Kotlin + #Spring の雛形を動かそうとすると java.lang.ClassNotFoundException: kotlin.reflect.KotlinReflectionInternalError が出る対応
これは?
”Kotlin Webアプリケーション 新しいサーバサイドプログラミング” を写経しつつKotlinを勉強していて、はまったのと日本語の記事がヒットしなかったのでメモを兼ねて記録しておく。
前提
- https://start.spring.io/ を用いて雛形を作成した。
- Springのバージョンは書籍に合わせて1.5.10にした。
生成された build.gradle の内容
buildscript { ext { kotlinVersion = '1.2.20' springBootVersion = '1.5.10.RELEASE' } repositories { mavenCentral() } dependencies { classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}") classpath("org.jetbrains.kotlin:kotlin-allopen:${kotlinVersion}") } } apply plugin: 'kotlin' apply plugin: 'kotlin-spring' apply plugin: 'eclipse' apply plugin: 'org.springframework.boot' group = 'com.example' version = '0.0.1-SNAPSHOT' sourceCompatibility = 1.8 compileKotlin { kotlinOptions { freeCompilerArgs = ["-Xjsr305=strict"] jvmTarget = "1.8" } } compileTestKotlin { kotlinOptions { freeCompilerArgs = ["-Xjsr305=strict"] jvmTarget = "1.8" } } repositories { mavenCentral() } dependencies { compile('org.springframework.boot:spring-boot-starter-web') compile('com.fasterxml.jackson.module:jackson-module-kotlin') compile("org.jetbrains.kotlin:kotlin-stdlib-jdk8:${kotlinVersion}") compile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}") testCompile('org.springframework.boot:spring-boot-starter-test') }
発生するエラー
java.lang.ClassNotFoundException: kotlin.reflect.KotlinReflectionInternalError というエラーが出てしまう。
. ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v1.5.10.RELEASE) 2018-03-19 16:42:29.978 INFO 4460 --- [ main] com.example.demo.DemoApplicationKt : No active profile set, falling back to default profiles: default 2018-03-19 16:42:30.228 INFO 4460 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@32cf48b7: startup date [Mon Mar 19 16:42:30 JST 2018]; root of context hierarchy 2018-03-19 16:42:36.081 INFO 4460 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http) 2018-03-19 16:42:36.128 INFO 4460 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2018-03-19 16:42:36.128 INFO 4460 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.27 2018-03-19 16:42:36.520 INFO 4460 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2018-03-19 16:42:36.520 INFO 4460 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 6339 ms 2018-03-19 16:42:36.770 ERROR 4460 --- [ost-startStop-1] o.s.b.c.embedded.tomcat.TomcatStarter : Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException. Message: Error creating bean with name 'httpPutFormContentFilter' defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.filter.OrderedHttpPutFormContentFilter]: Factory method 'httpPutFormContentFilter' threw exception; nested exception is java.lang.NoClassDefFoundError: kotlin/reflect/KotlinReflectionInternalError 2018-03-19 16:42:36.848 WARN 4460 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat 2018-03-19 16:42:36.880 INFO 4460 --- [ main] utoConfigurationReportLoggingInitializer : Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. 2018-03-19 16:42:36.911 ERROR 4460 --- [ main] o.s.boot.SpringApplication : Application startup failed org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:137) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at com.example.demo.DemoApplicationKt.main(DemoApplication.kt:10) [classes/:na] Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:123) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:84) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:554) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:179) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:164) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:134) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] ... 8 common frames omitted Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'httpPutFormContentFilter' defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.filter.OrderedHttpPutFormContentFilter]: Factory method 'httpPutFormContentFilter' threw exception; nested exception is java.lang.NoClassDefFoundError: kotlin/reflect/KotlinReflectionInternalError at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:234) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:182) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:177) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addAdaptableBeans(ServletContextInitializerBeans.java:159) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:80) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:241) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.selfInitialize(EmbeddedWebApplicationContext.java:228) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.access$000(EmbeddedWebApplicationContext.java:89) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:213) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.context.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:55) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196) ~[tomcat-embed-core-8.5.27.jar:8.5.27] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.27.jar:8.5.27] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419) ~[tomcat-embed-core-8.5.27.jar:8.5.27] at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409) ~[tomcat-embed-core-8.5.27.jar:8.5.27] at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_152] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_152] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_152] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152] Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.filter.OrderedHttpPutFormContentFilter]: Factory method 'httpPutFormContentFilter' threw exception; nested exception is java.lang.NoClassDefFoundError: kotlin/reflect/KotlinReflectionInternalError at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] ... 26 common frames omitted Caused by: java.lang.NoClassDefFoundError: kotlin/reflect/KotlinReflectionInternalError at com.fasterxml.jackson.module.kotlin.KotlinModule.setupModule(KotlinModule.kt:44) ~[jackson-module-kotlin-2.8.10.jar:2.8.10] at com.fasterxml.jackson.databind.ObjectMapper.registerModule(ObjectMapper.java:747) ~[jackson-databind-2.8.10.jar:2.8.10] at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.registerWellKnownModulesIfAvailable(Jackson2ObjectMapperBuilder.java:776) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.configure(Jackson2ObjectMapperBuilder.java:607) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.build(Jackson2ObjectMapperBuilder.java:590) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.http.converter.json.MappingJackson2HttpMessageConverter.<init>(MappingJackson2HttpMessageConverter.java:57) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter.<init>(AllEncompassingFormHttpMessageConverter.java:66) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.web.filter.HttpPutFormContentFilter.<init>(HttpPutFormContentFilter.java:63) ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.boot.web.filter.OrderedHttpPutFormContentFilter.<init>(OrderedHttpPutFormContentFilter.java:29) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration.httpPutFormContentFilter(WebMvcAutoConfiguration.java:149) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$$EnhancerBySpringCGLIB$$19331d3a.CGLIB$httpPutFormContentFilter$1(<generated>) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$$EnhancerBySpringCGLIB$$19331d3a$$FastClassBySpringCGLIB$$63a6f4c7.invoke(<generated>) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE] at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE] at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$$EnhancerBySpringCGLIB$$19331d3a.httpPutFormContentFilter(<generated>) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_152] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_152] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_152] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_152] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.14.RELEASE.jar:4.3.14.RELEASE] ... 27 common frames omitted Caused by: java.lang.ClassNotFoundException: kotlin.reflect.KotlinReflectionInternalError at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_152] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_152] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_152] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_152] ... 47 common frames omitted Process finished with exit code 1
対応
compile('com.fasterxml.jackson.module:jackson-module-kotlin') のままだと、2.8.10が選択されるので 2.9.4.1 を明示的に指定する。
buildscript { ext { kotlinVersion = '1.2.20' springBootVersion = '1.5.10.RELEASE' } repositories { mavenCentral() } dependencies { classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}") classpath("org.jetbrains.kotlin:kotlin-allopen:${kotlinVersion}") } } apply plugin: 'kotlin' apply plugin: 'kotlin-spring' apply plugin: 'eclipse' apply plugin: 'org.springframework.boot' group = 'com.example' version = '0.0.1-SNAPSHOT' sourceCompatibility = 1.8 compileKotlin { kotlinOptions { freeCompilerArgs = ["-Xjsr305=strict"] jvmTarget = "1.8" } } compileTestKotlin { kotlinOptions { freeCompilerArgs = ["-Xjsr305=strict"] jvmTarget = "1.8" } } repositories { mavenCentral() } dependencies { compile('org.springframework.boot:spring-boot-starter-web') compile('com.fasterxml.jackson.module:jackson-module-kotlin:2.9.4.1') compile("org.jetbrains.kotlin:kotlin-stdlib-jdk8:${kotlinVersion}") compile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}") testCompile('org.springframework.boot:spring-boot-starter-test') }
以上でとりあえずエラーが出なくなった。