Hello,
After upgrading from Struts 1.2 to Struts 1.3, I copied *commons-chain.jar*to the *WEB**-**INF**\lib* directory. I still got the following exception when I logged into the application. Note: The commons-chain.jar was *never *in the WEB-INF\lib directory when this project was running using Struts 1.2. If I don't have the commons-chain.jar in the WEB-INF\lib directory, I still got the same exception. * * Also, I have updated all the DTD references to: <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_3.dtd";> * * Could somebody let me know what I have missed here? Thanks a lot Joann *[**3/21/12** 9:55:41:973 **EDT**] 00000019 ActionServlet E org.apache.struts.action.ActionServlet init 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.NoClassDefFoundError: org.apache.commons.chain.config.ConfigParser* * at org.apache.struts.action.ActionServlet.initChain(ActionServlet.java:1680)* at org.apache.struts.action.ActionServlet.init(ActionServlet.java:350) at javax.servlet.GenericServlet.init(GenericServlet.java:241) at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:358) at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.init(ServletWrapperImpl.java:169) at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1809) at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:98) at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:1037) at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:958) at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:637) at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinally(WebApp.java:435) at com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.java:304) at com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(WebGroupImpl.java:100) at com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:166) at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:731) at com.ibm.ws.webcontainer.WSWebContainer.addWebApplication(WSWebContainer.java:616) at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:376) at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:668) at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1122) at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1319) at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:610) at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:944) at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:725) at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2046) at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:439) at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123) at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:382) at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$300(CompositionUnitMgrImpl.java:110) at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$CUInitializer.run(CompositionUnitMgrImpl.java:949) at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:349) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604) Caused by: java.lang.ClassNotFoundException: org.apache.commons.chain.config.ConfigParser at java.net.URLClassLoader.findClass(URLClassLoader.java:434) at com.ibm.ws.bootstrap.ExtClassLoader.findClass(ExtClassLoader.java:150) at java.lang.ClassLoader.loadClass(ClassLoader.java:653) at com.ibm.ws.bootstrap.ExtClassLoader.loadClass(ExtClassLoader.java:90) at java.lang.ClassLoader.loadClass(ClassLoader.java:619) at com.ibm.ws.classloader.ProtectionClassLoader.loadClass(ProtectionClassLoader.java:62) at com.ibm.ws.classloader.ProtectionClassLoader.loadClass(ProtectionClassLoader.java:58) at com.ibm.ws.classloader.CompoundClassLoader.loadClass(CompoundClassLoader.java:541) at java.lang.ClassLoader.loadClass(ClassLoader.java:619) ... 31 more
