Struts1.3.5でActionServlet起動時にParserConfigurationException

感想おまちしてます!

ActionServletが起動しない。どうもstruts-config.xmlの読み込みでエラーが発生している。StrutsとDigesterのログを見ると以下のエラーが出ていた。

 2007/04/25 19:52:54.913 [ERROR] ***** Digester.getParser: 
javax.xml.parsers.ParserConfigurationException: XML document validation is not supported
at com.bluecast.xml.JAXPSAXParserFactory.newSAXParser(JAXPSAXParserFactory.java:103)
at org.apache.commons.digester.parser.XercesParser.newSAXParser(XercesParser.java:139)
at org.apache.commons.digester.ParserFeatureSetterFactory.newSAXParser(ParserFeatureSetterFactory.java:73)
at org.apache.commons.digester.Digester.getParser(Digester.java:682)
at org.apache.commons.digester.Digester.getXMLReader(Digester.java:891)
at org.apache.commons.digester.Digester.parse(Digester.java:1572)
at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:745)
at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:686)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:353)
at javax.servlet.GenericServlet.init(GenericServlet.java:256)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:274)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:64)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:504)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1716)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1693)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1613)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2764)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:889)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:333)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:117)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:26)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:635)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:154)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:80)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:566)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:136)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:104)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:320)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:815)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1222)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:433)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:161)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:181)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:12)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:67)
at weblogic.work.ServerWorkManagerImpl$WorkAdapterImpl.run(ServerWorkManagerImpl.java:518)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
2007/04/25 19:52:54.918 [ERROR] ***** Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable. Most likely, this is due to an incorrect or missing library dependency.
java.lang.NullPointerException
at org.apache.commons.digester.Digester.getXMLReader(Digester.java:891)
at org.apache.commons.digester.Digester.parse(Digester.java:1572)
at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:745)
at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:686)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:353)
at javax.servlet.GenericServlet.init(GenericServlet.java:256)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:274)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:64)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:504)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1716)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1693)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1613)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2764)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:889)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:333)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:200)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:117)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:204)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:60)
at weblogic.application.internal.flow.StartModulesFlow. activate(StartModulesFlow.java:26)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:635)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:212)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:154)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:80)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:566)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:136)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:104)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:320)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:815)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1222)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:433)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:161)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:181)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:12)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:67)
at weblogic.work.ServerWorkManagerImpl$WorkAdapterImpl.run(ServerWorkManagerImpl.java:518)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
2
スポンサーリンク

原因と考えられるもの

XMLプロセッサの問題 

同様のエラーについての説明が以下のページに書いてあった。
http://mail-archives.apache.org/mod_mbox/struts-user/200606.mbox/%3c1C87F18496A132459C91DC2655F72E2301976238@exbpn003.paychex.com%3e

XMLプロセッサにはValidateできるものもあればできないものもある。「XML document validation is not supported」とあるので、できないXMLプロセッサを使っている可能性がある。XMLプロセッサを指定する方法はWebLogic9.2でJAXPを使うを参考のこと。

Piccoloというものを使って発生したのだが、使い方は「http://piccolo.sourceforge.net/using.html」参考のこと。「com.bluecast.xml.JAXPSAXParserFactory」の使い方はJavadocに書いてあった。「http://piccolo.sourceforge.net/javadoc/com/bluecast/xml/JAXPSAXParserFactory.html

起動時に以下のようなシステムプロパティを設定した。

-Dcom.bluecast.xml.ValidatingSAXParserFactory=org.apache.xerces.jaxp.SAXParserFactoryImpl

上記設定で「ValidateできないばあいはXercesを使う」という意味になるらしいが、続いて違うエラーが・・・・。JAXP恐るべし。