异常——JAXB 2.0 API is being loaded from the bootstrap classloader

最新推荐文章于 2015-02-16 13:49:33 发布

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最新推荐文章于 2015-02-16 13:49:33 发布

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分类专栏： Java技术专题文章标签： classloader jaxb api jdk jar file

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本文解决了一个关于Java应用程序中JAXB从2.0升级到2.1版本时出现的LinkageError问题。通过更新JDK版本至1.6u11，成功解决了因版本不匹配导致的运行时错误。

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java.lang.LinkageError: JAXB 2.0 API is being loaded from the bootstrap classloader, but this RI (from jar:file:/C:/Workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/CPSolutionTest/WEB-INF/lib/jaxb-impl-2.1.12.jar!/com/sun/xml/bind/v2/model/impl/ModelBuilder.class) needs 2.1 API. Use the endorsed directory mechanism to place jaxb-api.jar in the bootstrap classloader. (See http://java.sun.com/j2se/1.5.0/docs/guide/standards/)
   at com.sun.xml.bind.v2.model.impl.ModelBuilder.<clinit>(ModelBuilder.java:173)
   at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:456)
   at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:302)
   at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1136)
   at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:154)
   at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:121)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at javax.xml.bind.ContextFinder.newInstance(Unknown Source)
   at javax.xml.bind.ContextFinder.find(Unknown Source)
   at javax.xml.bind.JAXBContext.newInstance(Unknown Source)
   at javax.xml.bind.JAXBContext.newInstance(Unknown Source)
   at com.sun.jersey.core.provider.jaxb.AbstractJAXBProvider.getStoredJAXBContext(AbstractJAXBProvider.java:180)
   at com.sun.jersey.core.provider.jaxb.AbstractJAXBProvider.getJAXBContext(AbstractJAXBProvider.java:173)
   at com.sun.jersey.core.provider.jaxb.AbstractJAXBProvider.getMarshaller(AbstractJAXBProvider.java:151)
   at com.sun.jersey.core.provider.jaxb.AbstractJAXBProvider.getMarshaller(AbstractJAXBProvider.java:130)
   at com.sun.jersey.core.provider.jaxb.AbstractRootElementProvider.writeTo(AbstractRootElementProvider.java:144)
   at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:289)
   at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1029)
   at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:941)
   at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:932)
   at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:384)
   at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:451)
   at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:632)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
   at java.lang.Thread.run(Unknown Source)

关于此异常，按字面意思就是现在使用的是JAXB 2.0的API，但是需要2.1的API。看了要求去看的网页，然后又在网上找寻了很长时间，问题终于被解决。如果看的懂E文的话，可以去看看这篇文章http://nwangwei.spaces.live.com/Blog/cns!3A3D02B743E87051!240.entry。这里介绍个简单的方法，把jdk更新到jdk1.6u11就ok了。附加一个下载地址：http://olex.openlogic.com/packages/jdk/6u11