JAVA | about java.lang.NoSuchFieldError: REFLECTION problem

Problem Description

A service that is currently being SpringBoot + CXFbuilt webservice. Due to the migration of older versions. Starting the test after the migration is complete encountered the following error:

09:57:43.060 ERROR [main                ] [o.s.boot.SpringApplication    ] Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'AgentService': Invocation of init method failed; nested exception is java.lang.NoSuchFieldError: REFLECTION
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1745)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:846)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
	at com.StartApplication.main(StartApplication.java:27)
Caused by: java.lang.NoSuchFieldError: REFLECTION
	at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.<init>(RuntimeModelBuilder.java:93)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:455)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:303)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:142)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1174)
	at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:162)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:247)
	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:234)
	at javax.xml.bind.ContextFinder.find(ContextFinder.java:441)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:641)
	at org.apache.cxf.common.jaxb.JAXBContextCache$2.run(JAXBContextCache.java:347)
	at org.apache.cxf.common.jaxb.JAXBContextCache$2.run(JAXBContextCache.java:345)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.apache.cxf.common.jaxb.JAXBContextCache.createContext(JAXBContextCache.java:345)
	at org.apache.cxf.common.jaxb.JAXBContextCache.getCachedContextAndSchemas(JAXBContextCache.java:246)
	at org.apache.cxf.jaxb.JAXBDataBinding.createJAXBContextAndSchemas(JAXBDataBinding.java:472)
	at org.apache.cxf.jaxb.JAXBDataBinding.initialize(JAXBDataBinding.java:327)
	at org.apache.cxf.service.factory.AbstractServiceFactoryBean.initializeDataBindings(AbstractServiceFactoryBean.java:86)
	at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:467)
	at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildServiceFromClass(JaxWsServiceFactoryBean.java:696)
	at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:527)
	at org.apache.cxf.wsdl.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:261)
	at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:199)
	at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:102)
	at org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:168)
	at org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:211)
	at org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:460)
	at org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:338)
	at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:255)
	at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:543)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1870)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1813)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1741)
	... 14 common frames omitted

problem causes

By searching for similar error messages on the Internet, the conclusion is probably that there is a conflict in dependencies, and the conflict is caused by the above error logcom.sun.xml.bind.

solution

The key to solving this problem is to find conflicting dependencies.

1. TerminalIn the first use of IDEA mvn dependency:tree > tree.txt, view the tree of dependent packages.
2. Check tree.txtthe file, which is generally generated in the root directory of the project, if not, refresh it.
3. Query the keyword com.sun.xml.bindand find that it exists org.jboss.resteasy:resteasy-jaxb-provider:jarunder , you only need to com.sun.xml.bindexclude the jar package
   

<dependency>
   	<groupId>org.jboss.resteasy</groupId>
	<artifactId>resteasy-multipart-provider</artifactId>
   	<exclusions>
     <exclusion>
       <groupId>com.sun.xml.bind</groupId>
       <artifactId>jaxb-impl</artifactId>
     </exclusion>
   </exclusions>
</dependency>

reference

1. https://stackoverflow.com/questions/25765238/java-lang-nosuchfielderror-reflection