Why do i get java.lang.ClassCastException: org.apache.xerces.parsers.XIncludeAwa
Problem
When deploying your application in AS-5, you might see exception similar to this:
Cause:
You are probably packaging xerces related jar(s) (ex: xercesImpl.jar) in your application. JBoss AS ships the xerces related jar in its JBOSS_HOME/lib/endorsed folder. If your application packages this jar then it leads to a classlaoder issue ultimately resulting in the ClassCastException
Workaround:
- Remove the xerces related jar file(s) from your application packaging
Why can't i scope my application for classloading so that i can ship a different version of xercesImpl?
Instead of removing the xerces jar file from your application, you could probably have setup classloader isolation for your application. But that does not work with xerces jars.It's because of this bug https://jira.jboss.org/jira/browse/JBAS-7210
Forum references
More discussion about this is here in these forum threads
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=158645
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=159953
引用:http://community.jboss.org/wiki/WhydoigetjavalangClassCastExceptionorgapachexercesparsersXIncludeAwareParserConfigurationinAS-5
When deploying your application in AS-5, you might see exception similar to this:
16:05:36,907 ERROR [JBossContextConfig] XML error parsing: context.xml
org.jboss.xb.binding.JBossXBRuntimeException: Failed to create a new SAX parser
at org.jboss.xb.binding.UnmarshallerFactory$UnmarshallerFactoryImpl.newUnmarshaller(UnmarshallerFactory.java:100)
at org.jboss.web.tomcat.service.deployers.JBossContextConfig.processContextConfig(JBossContextConfig.java:552)
at org.jboss.web.tomcat.service.deployers.JBossContextConfig.init(JBossContextConfig.java:538)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:279)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.StandardContext.init(StandardContext.java:5436)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4148)
at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:367)
at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:146)
at org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:460)
at org.jboss.web.deployers.WebModule.startModule(WebModule.java:118)
at org.jboss.web.deployers.WebModule.start(WebModule.java:96)
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:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206)
at $Proxy36.start(Unknown Source)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37)
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.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:286)
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.system.ServiceController.doChange(ServiceController.java:688)
at org.jboss.system.ServiceController.start(ServiceController.java:460)
at org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:146)
at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:104)
at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:45)
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:545)
at org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:304)
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$1.run(Main.java:547)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.jboss.xb.binding.JBossXBException: Failed to create a new SAX parser
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.(SaxJBossXBParser.java:97)
at org.jboss.xb.binding.UnmarshallerImpl.(UnmarshallerImpl.java:56)
at org.jboss.xb.binding.UnmarshallerFactory$UnmarshallerFactoryImpl.newUnmarshaller(UnmarshallerFactory.java:96)
... 62 more
Caused by: java.lang.ClassCastException: org.apache.xerces.parsers.XIncludeAwareParserConfiguration
at org.apache.xerces.parsers.SAXParser.(Unknown Source)
at org.apache.xerces.parsers.SAXParser.(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl.(Unknown Source)
at org.apache.xerces.jaxp.SAXParserFactoryImpl.newSAXParser(Unknown Source)
at org.jboss.xb.binding.parser.sax.SaxJBossXBParser.(SaxJBossXBParser.java:92)
... 64 more
Cause:
You are probably packaging xerces related jar(s) (ex: xercesImpl.jar) in your application. JBoss AS ships the xerces related jar in its JBOSS_HOME/lib/endorsed folder. If your application packages this jar then it leads to a classlaoder issue ultimately resulting in the ClassCastException
Workaround:
- Remove the xerces related jar file(s) from your application packaging
Why can't i scope my application for classloading so that i can ship a different version of xercesImpl?
Instead of removing the xerces jar file from your application, you could probably have setup classloader isolation for your application. But that does not work with xerces jars.It's because of this bug https://jira.jboss.org/jira/browse/JBAS-7210
Forum references
More discussion about this is here in these forum threads
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=158645
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=159953
引用:http://community.jboss.org/wiki/WhydoigetjavalangClassCastExceptionorgapachexercesparsersXIncludeAwareParserConfigurationinAS-5