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Xerces & WAS Classloading Issues

Rr Kumaran
Ranch Hand

Joined: Sep 17, 2001
Posts: 548
I am trying to deploy AXIS 1.2 RC2 as Web Module inside a EAR module deployed on
WebSphere 5.0 Application Server.


I have made below settings in WAS 5.0 :

a.ear Classloader mode: PARENT_FIRST
b.ear WAR classloader policy: MODULE
c.war Classloader mode : PARENT_FIRST

However when I try deploy with above settingss then I am getting below error :

[3/14/05 14:24:07:201 GMT+05:30] 2b410196 ServletInstan E SRVE0100E: Did not realize init() exception thrown by servlet AdminServlet: javax.servlet.ServletException: (class: org/apache/xerces/jaxp/DocumentBuilderImpl, method: parse signature: (Lorg/xml/sax/InputSource Lorg/w3c/dom/Document Incompatible object argument for method call
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doInit(StrictServletInstance.java:99)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._init(StrictLifecycleServlet.java:147)
at com.ibm.ws.webcontainer.servlet.PreInitializedServletState.init(StrictLifecycleServlet.java:270)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.init(StrictLifecycleServlet.java:113)
at com.ibm.ws.webcontainer.servlet.ServletInstance.init(ServletInstance.java:175)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at com.ibm.ws.webcontainer.webapp.WebAppServletManager.addServlet(WebAppServletManager.java:761)
at com.ibm.ws.webcontainer.webapp.WebAppServletManager.loadServlet(WebAppServletManager.java:257)
at com.ibm.ws.webcontainer.webapp.WebAppServletManager.loadAutoLoadServlets(WebAppServletManager.java:453)
at com.ibm.ws.webcontainer.webapp.WebApp.loadServletManager(WebApp.java:1233)
at com.ibm.ws.webcontainer.webapp.WebApp.init(WebApp.java:273)
at com.ibm.ws.webcontainer.srt.WebGroup.loadWebApp(WebGroup.java:317)
at com.ibm.ws.webcontainer.srt.WebGroup.init(WebGroup.java:194)
at com.ibm.ws.webcontainer.WebContainer.addWebApplication(WebContainer.java:950)
at com.ibm.ws.runtime.component.WebContainerImpl.install(WebContainerImpl.java:133)
at com.ibm.ws.runtime.component.WebContainerImpl.start(WebContainerImpl.java:360)
at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:401)
at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:743)
at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:337)
at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:531)
at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:254)
at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:458)
at java.lang.reflect.Method.invoke(Native Method)
at com.tivoli.jmx.modelmbean.MMBInvoker.invoke(MMBInvoker.java:46)
at com.tivoli.jmx.modelmbean.MMBInvoker.invokeOperation(MMBInvoker.java:115)
at com.tivoli.jmx.modelmbean.DynamicModelMBeanSupport.invoke(DynamicModelMBeanSupport.java:409)
at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:323)
at com.tivoli.jmx.GenericMBeanSupport.invoke(GenericMBeanSupport.java:178)
at com.tivoli.jmx.MBeanAccess.invoke(MBeanAccess.java:113)
at com.tivoli.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:290)
at com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:655)
at com.ibm.ws.console.core.mbean.MBeanHelper.invoke(MBeanHelper.java:137)
at com.ibm.ws.console.appdeployment.ApplicationDeploymentCollectionAction.perform(ApplicationDeploymentCollectionAction.java:239)
at org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1791)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1586)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:510)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:173)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:199)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.cache.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:114)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:187)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:331)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java(Compiled Code))
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java(Compiled Code))
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code))

[3/14/05 14:24:07:216 GMT+05:30] 2b410196 WebGroup E SRVE0020E: [Servlet Error]-[AdminServlet]: Failed to load servlet: java.lang.VerifyError: (class: org/apache/xerces/jaxp/DocumentBuilderImpl, method: parse signature: (Lorg/xml/sax/InputSource Lorg/w3c/dom/Document Incompatible object argument for method call
at org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown Source)
at org.apache.axis.utils.XMLUtils.getDocumentBuilder(XMLUtils.java:223)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:329)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:351)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:176)
at org.apache.axis.AxisEngine.init(AxisEngine.java:162)
at org.apache.axis.AxisEngine.<init>(AxisEngine.java:146)
at org.apache.axis.server.AxisServer.<init>(AxisServer.java:87)
at org.apache.axis.server.DefaultAxisServerFactory.createServer(DefaultAxisServerFactory.java:109)
at org.apache.axis.server.DefaultAxisServerFactory.getSe
 
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subject: Xerces & WAS Classloading Issues