Finally I got the solution! xerces.jar was removed from $TOMCAT/webapps/myapp/WEB-INF/lib
instead of xerces I placed the crimson.jar and jaxp.jar files that are included in jboss (EJB container http://www.jboss.org) Thank to everybody. -----Mensaje original----- De: Domingo Aguilera [mailto:[EMAIL PROTECTED]] Enviado el: Lunes, 01 de Octubre de 2001 12:52 p.m. Para: [EMAIL PROTECTED] Asunto: RE: Tomcat 4.0 and Struts. I made a mistake when writing about the location of the xml parser... It is Xerces 1.4.1 and is placed in $TOMCAT/webapps/myapp/WEB-INF/lib -----Mensaje original----- De: Domingo Aguilera [mailto:[EMAIL PROTECTED]] Enviado el: Lunes, 01 de Octubre de 2001 12:47 p.m. Para: [EMAIL PROTECTED] Asunto: Tomcat 4.0 and Struts. Is there any issue regarding the use of Tomcat 4.0 and struts when dealing with the "digester parsing" of the struts-config.xml ? This is what´s been written to log file in tomcat 4.0 2001-10-01 11:28:58 StandardContext[/extranet]: Servlet /extranet threw load() exception javax.servlet.ServletException: Servlet.init() for servlet action threw exception at org.apache.catalina.core.StandardWrapper.load(Unknown Source) at org.apache.catalina.core.StandardContext.loadOnStartup(Unknown Source) at org.apache.catalina.core.StandardContext.start(Unknown Source) at org.apache.catalina.core.ContainerBase.addChild(Unknown Source) at org.apache.catalina.core.StandardHost.addChild(Unknown Source) at org.apache.catalina.core.StandardHost.install(Unknown Source) at org.apache.catalina.startup.HostConfig.deployApps(Unknown Source) at org.apache.catalina.startup.HostConfig.start(Unknown Source) at org.apache.catalina.startup.HostConfig.lifecycleEvent(Unknown Source) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Unknown Source) at org.apache.catalina.core.ContainerBase.start(Unknown Source) at org.apache.catalina.core.ContainerBase.start(Unknown Source) at org.apache.catalina.core.StandardEngine.start(Unknown Source) at org.apache.catalina.core.StandardService.start(Unknown Source) at org.apache.catalina.core.StandardServer.start(Unknown Source) at org.apache.catalina.startup.Catalina.start(Unknown Source) at org.apache.catalina.startup.Catalina.execute(Unknown Source) at org.apache.catalina.startup.Catalina.process(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:42 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:28) at java.lang.reflect.Method.invoke(Method.java:313) at org.apache.catalina.startup.Bootstrap.main(Unknown Source) ----- Root Cause ----- java.lang.NullPointerException at org.apache.commons.digester.Digester.parse(Digester.java:859) at org.apache.struts.action.ActionServlet.initMapping(ActionServlet.java:1273) at org.apache.struts.action.ActionServlet.init(ActionServlet.java:460) at javax.servlet.GenericServlet.init(GenericServlet.java:258) at org.apache.catalina.core.StandardWrapper.load(Unknown Source) at org.apache.catalina.core.StandardContext.loadOnStartup(Unknown Source) at org.apache.catalina.core.StandardContext.start(Unknown Source) at org.apache.catalina.core.ContainerBase.addChild(Unknown Source) at org.apache.catalina.core.StandardHost.addChild(Unknown Source) at org.apache.catalina.core.StandardHost.install(Unknown Source) at org.apache.catalina.startup.HostConfig.deployApps(Unknown Source) at org.apache.catalina.startup.HostConfig.start(Unknown Source) at org.apache.catalina.startup.HostConfig.lifecycleEvent(Unknown Source) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Unknown Source) at org.apache.catalina.core.ContainerBase.start(Unknown Source) at org.apache.catalina.core.ContainerBase.start(Unknown Source) at org.apache.catalina.core.StandardEngine.start(Unknown Source) at org.apache.catalina.core.StandardService.start(Unknown Source) at org.apache.catalina.core.StandardServer.start(Unknown Source) at org.apache.catalina.startup.Catalina.start(Unknown Source) at org.apache.catalina.startup.Catalina.execute(Unknown Source) at org.apache.catalina.startup.Catalina.process(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:42 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:28) at java.lang.reflect.Method.invoke(Method.java:313) at org.apache.catalina.startup.Bootstrap.main(Unknown Source) This is the struts-config.xml ( with some changes to not show password , etc.) ----struts-config.xml---------- <?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.0//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd";> <struts-config> <data-sources> <data-source> <set-property property="autoCommit" value="false"/> <set-property property="description" value="Example Data Source Configuration"/> <set-property property="driverClass" value="org.gjt.mm.mysql.Driver"/> <set-property property="maxCount" value="4"/> <set-property property="minCount" value="2"/> <set-property property="password" value="xyz"/> <set-property property="url" value="jdbc:mysql://mysqlhost.mysite.com/mydatabase"/> <set-property property="user" value="xyz"/> </data-source> </data-sources> <!-- ========== Form Bean Definitions =================================== --> <form-beans> <form-bean name="lform" type="logonform"/> </form-beans> <!-- ========== Global Forward Definitions ============================== --> <global-forwards> <forward name="welcome" path="/do/showlogonform"/> </global-forwards> <!-- ========== Action Mapping Definitions ============================== --> <action-mappings> <!-- lesson1 action --> <action path="/logon" type="logonaction" name="lform" input="/WEB-INF/Pages/logonform.jsp"> <forward name="home" path="/WEB-INF/Pages/home.jsp"/> <forward name="logon" path="/WEB-INF/Pages/logonform.jsp"/> </action> <action path="/logoff" type="logoffaction"> <forward name="login" path="/WEB-INF/Pages/logonform.jsp"/> </action> <action path="/showlogonform" forward="/WEB-INF/Pages/logonform.jsp"> </action> <!-- The standard administrative actions available with Struts --> <!-- These would be either omitted or protected by security --> <!-- in a real application deployment --> <action path="/admin/addFormBean" type="org.apache.struts.actions.AddFormBeanAction"/> <action path="/admin/addForward" type="org.apache.struts.actions.AddForwardAction"/> <action path="/admin/addMapping" type="org.apache.struts.actions.AddMappingAction"/> <action path="/admin/reload" type="org.apache.struts.actions.ReloadAction"/> <action path="/admin/removeFormBean" type="org.apache.struts.actions.RemoveFormBeanAction"/> <action path="/admin/removeForward" type="org.apache.struts.actions.RemoveForwardAction"/> <action path="/admin/removeMapping" type="org.apache.struts.actions.RemoveMappingAction"/> </action-mappings> </struts-config> --- end of struts-config.xml ---- This app was running well in tomcat 3.3 b2 jakarta-struts and jakarta-commons jar files are from September 19th. XML SAX parser is Xerces 1.4.1 whose jar file is in $TOMCAT/webapps/myapp/lib O.S. Windows Millenium Java version is 1.4 beta2 Any suggestions ?
