Getting LinkageError while deploying application in JBOSS5

Question

While deploying my app in JBOSS5 (earlier i was deploying in JBOSS4), I get below exception.

I guess this error has got something to do with com.opensymphony.xwork2 package used in struts.

java.lang.LinkageError: loader constraint violation: when resolving method "javax.xml.parsers.DocumentBuilder.setErrorHandler(Lorg/xml/sax/ErrorHandler;)V" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the current class, org/apache/log4j/xml/DOMConfigurator, and the class loader (instance of <bootloader>) for resolved class, javax/xml/parsers/DocumentBuilder, have different Class objects for the type org/xml/sax/ErrorHandler used in the signature
    at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:708)
    at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:618)
    at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:470)
    at org.apache.log4j.LogManager.<clinit>(LogManager.java:122)
    at org.apache.log4j.Logger.getLogger(Logger.java:117)
    at com.hmco.ssms.servlet.filter.AuthFilter.<clinit>(AuthFilter.java:38)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at java.lang.Class.newInstance0(Class.java:355)
    at java.lang.Class.newInstance(Class.java:308)
    at org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:264)
    at org.jboss.web.tomcat.service.TomcatInjectionContainer.newInstance(TomcatInjectionContainer.java:256)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:220)
    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:332)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:90)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3783)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4413)
    at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:310)
    at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:142)
    at org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:461)
    at org.jboss.web.deployers.WebModule.startModule(WebModule.java:118)
    at org.jboss.web.deployers.WebModule.start(WebModule.java:97)
    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.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 $Proxy38.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:1631)
    at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
    at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
    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:163)
    at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:99)
    at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46)
    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.doInstallParentFirst(DeployersImpl.java:1210)
    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:1631)
    at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
    at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
    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:702)
    at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)
    at org.jboss.system.server.profileservice.repository.ProfileDeployAction.install(ProfileDeployAction.java:70)
    at org.jboss.system.server.profileservice.repository.AbstractProfileAction.install(AbstractProfileAction.java:53)
    at org.jboss.system.server.profileservice.repository.AbstractProfileService.install(AbstractProfileService.java:361)
    at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
    at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631)
    at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
    at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
    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.server.profileservice.repository.AbstractProfileService.activateProfile(AbstractProfileService.java:306)
    at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:271)
    at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461)
    at org.jboss.Main.boot(Main.java:221)
    at org.jboss.Main$1.run(Main.java:556)
    at java.lang.Thread.run(Thread.java:662)

I deleted Xerces, Xalan (all xml api related jars) from my lib folder and compiled EAR and put it server. But still am getting this exception.

Appreciate your help friends !!

Answer 1

This issue is fixed.

1.) JBOSS-5 already has its own sax parsers

2.) So I removed the duplicate jar files like, JAXB*.jar, dom4j*.jar from my app

3.) started the server

this is because of the conflict of different versions of parsers !!