Java 9로 전환 할 때 Spring 부트를 사용하는 javax.xml.bind.JAXBException의 ClassNotFoundException

start.spring.io를 사용하여 프로젝트를 초기화했습니다.

WEB, JPA, H2 종속성을 추가 한 다음 Jdk 9를 사용하여 MainApplication.java를 실행하려고 시도하고 다음 오류 로그가 표시됩니다.

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::       (v1.5.10.RELEASE)

2018-02-26 16:23:33.973  INFO 3860 --- [           main] com.example.demo.DemoApplication         : Starting DemoApplication v0.0.1-SNAPSHOT on RAJAT-PC with PID 3860 (C:\Users\devra\Downloads\Compressed\demo\target\demo-0.0.1-SNAPSHOT.jar started by rajat in C:\Users\devra\Downloads\Compressed\demo\target)
2018-02-26 16:23:33.973  INFO 3860 --- [           main] com.example.demo.DemoApplication         : No active profile set, falling back to default profiles: default
2018-02-26 16:23:34.254  INFO 3860 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@1aa7ecca: startup date [Mon Feb 26 16:23:34 IST 2018]; root of context hierarchy
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (jar:file:/C:/Users/devra/Downloads/Compressed/demo/target/demo-0.0.1-SNAPSHOT.jar!/BOOT-INF/lib/spring-core-4.3.14.RELEASE.jar!/) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2018-02-26 16:23:38.429  INFO 3860 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$1c55a85e] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-02-26 16:23:39.856  INFO 3860 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2018-02-26 16:23:39.888  INFO 3860 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-02-26 16:23:39.903  INFO 3860 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.27
2018-02-26 16:23:40.247  INFO 3860 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2018-02-26 16:23:40.247  INFO 3860 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 6024 ms
2018-02-26 16:23:40.622  INFO 3860 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-02-26 16:23:40.622  INFO 3860 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-02-26 16:23:40.622  INFO 3860 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-02-26 16:23:40.622  INFO 3860 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-02-26 16:23:40.622  INFO 3860 --- [ost-startStop-1] .s.DelegatingFilterProxyRegistrationBean : Mapping filter: 'springSecurityFilterChain' to: [/*]
2018-02-26 16:23:40.622  INFO 3860 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2018-02-26 16:23:40.622  INFO 3860 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'webServlet' to [/h2-console/*]
2018-02-26 16:23:42.200  INFO 3860 --- [           main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2018-02-26 16:23:42.263  INFO 3860 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
        name: default
        ...]
2018-02-26 16:23:42.591  INFO 3860 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.0.12.Final}
2018-02-26 16:23:42.607  INFO 3860 --- [           main] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2018-02-26 16:23:42.607  INFO 3860 --- [           main] org.hibernate.cfg.Environment            : HHH000021: Bytecode provider name : javassist
2018-02-26 16:23:42.653  WARN 3860 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
2018-02-26 16:23:42.669  INFO 3860 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2018-02-26 16:23:42.716  INFO 3860 --- [           main] utoConfigurationReportLoggingInitializer :

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2018-02-26 16:23:42.747 ERROR 3860 --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[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:197) ~[spring-beans-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1080) ~[spring-context-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:857) ~[spring-context-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[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.DemoApplication.main(DemoApplication.java:10) [classes!/:0.0.1-SNAPSHOT]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [demo-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [demo-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [demo-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [demo-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
        at org.hibernate.boot.spi.XmlMappingBinderAccess.<init>(XmlMappingBinderAccess.java:43) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final]
        at org.hibernate.boot.MetadataSources.<init>(MetadataSources.java:87) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final]
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:179) ~[hibernate-entitymanager-5.0.12.Final.jar!/:5.0.12.Final]
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:149) ~[hibernate-entitymanager-5.0.12.Final.jar!/:5.0.12.Final]
        at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:54) ~[spring-orm-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:360) ~[spring-orm-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:382) ~[spring-orm-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:371) ~[spring-orm-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:336) ~[spring-orm-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.14.RELEASE.jar!/:4.3.14.RELEASE]
        ... 24 common frames omitted
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBException
        at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:466) ~[na:na]
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:563) ~[na:na]
        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:94) ~[demo-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496) ~[na:na]
        ... 35 common frames omitted

그렇다면 나는 jdk 8로 바꿨다.

스프링 부트 2.0.0 RC2에서도 마찬가지입니다.

Spring doc이 필요한 Java 버전을 8 또는 9로 언급했을 때 왜 이런 일이 발생 했습니까?

해결법

==============================
1.JAXB 의존성을 추가해야하며 (Java 9에서는 더 이상 기본적으로 제공되지 않음) Spring 부트 2를 사용해야합니다.

JAXB 의존성을 추가해야하며 (Java 9에서는 더 이상 기본적으로 제공되지 않음) Spring 부트 2를 사용해야합니다.
```
<dependency>
    <groupId>javax.xml.bind</groupId>
     <artifactId>jaxb-api</artifactId>
    <version>2.3.0</version>
 </dependency>
```
Java 10을 사용하는 경우 Java 9 버전에 대해서만 JAXB 종속성 제거가 수행되지 않은 것과 똑같은 문제가 발생합니다.

자바 9 이상에 관한 스프링 부트 위키는 자바 9 이상에서 스프링 부트 응용 프로그램을 실행하기 위해 알아야 할 것들을 나열합니다.

스프링 부트 1은 그것을 지원하지 않으며 계획도 없습니다. 스프링 부트 2가 지원합니다.

Java 10은 Spring Boot 2.0.1.RELEASE에서 지원되는 반면 Java 11은 Spring Boot 2.1.0.M2에서 지원됩니다.

AspectJ

JAXB
```
<dependency>
    <groupId>javax.xml.bind</groupId>
     <artifactId>jaxb-api</artifactId>
    <version>2.3.0</version>
 </dependency>
```
Java11부터 모듈을 사용할 수 없으므로 JAXB RI를 추가하는 것만 가능합니다 (java.xml.bind 모듈을 추가하는 대신 Java9로 할 수 있습니다).
```
<dependency>
    <groupId>org.glassfish.jaxb</groupId>
    <artifactId>jaxb-runtime</artifactId>
</dependency>
```
롬복

롬복 (Lombok)을 사용하고 있다면 최신 버전의 JDK에서는 스프링 부트의 관리 버전이 작동하지 않을 수 있습니다. 필요한 경우 Lombok 웹 사이트를 확인하고 버전을 재정의하십시오.

Spring Boot와의 Java 9 이상의 호환성에 대해 변경이있을 경우이 게시물을 편집하는 것을 주저하지 마십시오.

==============================

2.아래에 종속성 추가 및 문제 해결

아래에 종속성 추가 및 문제 해결

<dependency>
    <groupId>javax.xml.bind</groupId>
     <artifactId>jaxb-api</artifactId>
    <version>2.3.0</version>
 </dependency>

==============================

3.pom.xml 아래에 maven 의존성을 추가하면 문제가 해결됩니다. Java9 / 10 JaxB 모듈이 제거되었으므로 수동으로 추가해야합니다.

pom.xml 아래에 maven 의존성을 추가하면 문제가 해결됩니다. Java9 / 10 JaxB 모듈이 제거되었으므로 수동으로 추가해야합니다.

<dependency>
  <groupId>javax.xml.bind</groupId>
  <artifactId>jaxb-api</artifactId>
  <version>2.2.11</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-core</artifactId>
 <version>2.2.11</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-impl</artifactId>
  <version>2.2.11</version>
 </dependency>
<dependency>
  <groupId>javax.activation</groupId>
  <artifactId>activation</artifactId>
  <version>1.1.1</version>
</dependency>
<dependency>
  <groupId>com.fasterxml.jackson.dataformat</groupId>
  <artifactId>jackson-dataformat-xml</artifactId>
</dependency>

==============================
4.또는 Gradle에 종속성을 추가합니다.

또는 Gradle에 종속성을 추가합니다.
```
compile group: 'javax.xml.bind', name: 'jaxb-api', version: '2.3.1'
```

from https://stackoverflow.com/questions/48986999/classnotfoundexception-for-javax-xml-bind-jaxbexception-with-spring-boot-when-sw by cc-by-sa and MIT license

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복붙노트

[SPRING] Java 9로 전환 할 때 Spring 부트를 사용하는 javax.xml.bind.JAXBException의 ClassNotFoundException

Java 9로 전환 할 때 Spring 부트를 사용하는 javax.xml.bind.JAXBException의 ClassNotFoundException

해결법

1.JAXB 의존성을 추가해야하며 (Java 9에서는 더 이상 기본적으로 제공되지 않음) Spring 부트 2를 사용해야합니다.

2.아래에 종속성 추가 및 문제 해결

3.pom.xml 아래에 maven 의존성을 추가하면 문제가 해결됩니다. Java9 / 10 JaxB 모듈이 제거되었으므로 수동으로 추가해야합니다.

4.또는 Gradle에 종속성을 추가합니다.

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