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org.apache.struts.action.ActionServlet.parseModuleConfigFile 处的 java.lang.NullPointerException

转载 作者：太空宇宙 更新时间：2023-11-04 08:29:47 25 4
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我们正在 WAS6 中部署 Struts 应用程序。初始化时我们收到如下错误:

org.apache.struts.util.PropertyMessageResources <init> Initializing, config='org.apache.struts.util.LocalStrings', returnNull=true
[10/13/11 8:10:30:999 CDT] 00000016 PropertyMessa I org.apache.struts.util.PropertyMessageResources <init> Initializing, config='org.apache.struts.action.ActionResources', returnNull=true
[10/13/11 8:10:31:317 CDT] 00000016 PropertyMessa I org.apache.struts.util.PropertyMessageResources <init> Initializing, config='ApplicationResources', returnNull=true
[10/13/11 8:10:31:394 CDT] 00000016 TilesPlugin   I org.apache.struts.tiles.TilesPlugin init Tiles definition factory loaded for module ''.
[10/13/11 8:10:31:395 CDT] 00000016 ServletWrappe E   SRVE0100E: Did not realize  init() exception thrown by servlet action: java.lang.NullPointerException
    at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:1003)
    at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:955)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:482)
    at org.apache.struts.tiles.ActionComponentServlet.init(ActionComponentServlet.java:104)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:227)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:342)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1308)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:175)
    at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:910)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:832)
    at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:550)
    at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:387)
    at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:293)
    at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:93)
    at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:162)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:673)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:626)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:335)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:551)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1274)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1137)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:572)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:816)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:945)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2120)
    at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)

[10/13/11 8:10:31:399 CDT] 00000016 ServletWrappe E   Deregister the mbean because of uncaught init() exception thrown by servlet action: javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception thrown by servlet
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:286)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:342)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1308)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:175)
    at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:910)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:832)
    at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:550)
    at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:387)
    at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:293)
    at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:93)
    at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:162)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:673)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:626)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:335)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:551)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1274)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1137)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:572)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:816)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:945)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2120)
    at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)
---- Begin backtrace for Nested Throwables
java.lang.NullPointerException
    at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:1003)
    at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:955)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:482)
    at org.apache.struts.tiles.ActionComponentServlet.init(ActionComponentServlet.java:104)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:227)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:342)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1308)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:175)
    at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:910)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:832)
    at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:550)
    at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:387)
    at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:293)
    at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:93)
    at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:162)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:673)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:626)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:335)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:551)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1274)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1137)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:572)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:816)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:945)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2120)
    at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)
, 
[10/13/11 8:10:31:401 CDT] 00000016 WebExtensionP E   Error occured while preparing the servlet for initialization. 
javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception thrown by servlet
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:286)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:342)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1308)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:175)
    at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:910)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:832)
    at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:550)
    at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:387)
    at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:293)
    at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:93)
    at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:162)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:673)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:626)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:335)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:551)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1274)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1137)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:572)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:816)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:945)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2120)
    at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)
---- Begin backtrace for Nested Throwables
java.lang.NullPointerException
    at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:1003)
    at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:955)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:482)
    at org.apache.struts.tiles.ActionComponentServlet.init(ActionComponentServlet.java:104)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:227)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:342)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1308)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:175)
    at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:99)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:910)
    at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:832)
    at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:550)
    at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:387)
    at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:293)
    at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:93)
    at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:162)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:673)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:626)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:335)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:551)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1274)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1137)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:572)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:816)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:945)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(ApplicationMgrImpl.java:2120)
    at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:342)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1551)

这是怎么造成的以及如何解决这个问题？

最佳答案

最近我们在添加新模块时遇到了这个问题。我们发现 web.xml 包含新模块 struts 配置映射，但实际文件并不存在于该位置。

关于org.apache.struts.action.ActionServlet.parseModuleConfigFile 处的 java.lang.NullPointerException，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7762793/

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