[转]JBoss与JDK的JAXB版本不一致

[标题]:[转]JBoss与JDK的JAXB版本不一致
[时间]:2009-5-14
[摘要]:java.lang.LinkageError: JAXB 2.0 API is being loaded from the bootstrap classloader, but this RI (from vfszip:/F:/JavaEmt/JBoss/lib/jaxb-impl.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.
[关键字]:Java EE，JBoss5，EJB，Eclipse，JAXB，endorsed，jaxws
[环境]:jboss-5.0.1.GA、Eclipse for Java EE:version3.4.1、Windows XP SP3
[作者]:Winty ([e-mail]) http://www.blogjava.net/wintys

[错误]:
在Eclipse中启动JBoss出现如下错误:

java.lang.LinkageError: JAXB 2.0 API is being loaded from the bootstrap classloader, but this RI (from vfszip:/F:/JavaEmt/JBoss/lib/jaxb-impl.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:432)
    at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:297)
    at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:139)
    at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:117)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:210)
    at javax.xml.bind.ContextFinder.find(ContextFinder.java:368)
    at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574)
    at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:522)
    at org.jboss.resource.deployers.ManagedConnectionFactoryParserDeployer.create(ManagedConnectionFactoryParserDeployer.java:106)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUtils.java:59)
    at org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(ReflectMethodInfoImpl.java:150)
    at org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoint.java:66)
    at org.jboss.kernel.plugins.dependency.KernelControllerContextAction$JoinpointDispatchWrapper.execute(KernelControllerContextAction.java:241)
    at org.jboss.kernel.plugins.dependency.ExecutionWrapper.execute(ExecutionWrapper.java:47)
    at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchExecutionWrapper(KernelControllerContextAction.java:109)
    at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchJoinPoint(KernelControllerContextAction.java:70)
    at org.jboss.kernel.plugins.dependency.LifecycleAction.installActionInternal(LifecycleAction.java:221)
    at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:54)
    at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:42)
    at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62)
    at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71)
    at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51)
    at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
    at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
    at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
    at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
    at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
    at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:774)
    at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:540)
    at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMetaDataDeployer.java:121)
    at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMetaDataDeployer.java:51)
    at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:62)
    at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
    at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
    at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
    at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
    at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1178)
    at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
    at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
    at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598)
    at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
    at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062)
    at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
    at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
    at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
    at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
    at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:698)
    at org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:297)
    at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:205)
    at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:405)
    at org.jboss.Main.boot(Main.java:209)
    at org.jboss.Main$1.run(Main.java:547)
    at java.lang.Thread.run(Thread.java:619)

[原因]:
    jboss-5.0.1.GA所用的jaxws和jaxb版本为2.1，而JDK1.6.0_03的是JAXB 2.0 和 JAX-WS 2.0更新。加载的是jdk的2.0版本的jaxws和jaxb，而jboss需要的是2.1版本的jaxws和jaxb。

[解决]:
方法1:
You probably are using an older version of Java 1.6. Download the latest available update of Java 1.6 from the Sun site and use that with JBoss.
更新到jdk1.6u11+即可。

方法2:
采用"授权标准覆盖机制"(Endorsed Standards Override Mechanism : http://java.sun.com/j2se/1.5.0/docs/guide/standards/)。
操作如下:
a.新建目录:$JDK_HOME/jre/lib/endorsed
b.将JBoss中2.1版的jaxb-api.jar和jaxws-api.jar复制到endorsed目录，则会完成对JDK的jaxb和jaxws api的覆盖。

[参考资料]:
[1] LinkageErrorWithJBoss5Java6 : http://www.jboss.org/community/wiki/LinkageErrorWithJBoss5Java6
[2] 在 NetBeans 6 中创建 SOAP Web 服务 : http://www.javaclub.net/Java/netbeans6_soap_webservice.html
[3] CXF与jdk1.6兼容问题 : http://lxj8495138.iteye.com/blog/338384
[4] http://nwangwei.spaces.live.com/Blog/cns!3A3D02B743E87051!240.entry
[5] Endorsed Standards Override Mechanism : http://java.sun.com/j2se/1.5.0/docs/guide/standards/

[附件]:
jaxb-api.jar 、 jaxws-api.jar