[jboss-user] [EJB 3.0] - DownGrade: A Enterprise Application of JBoss 4.2.1.GA to JBo

Thursday, 31 January 2008

Hi,

  I have a Enterprise Application (EAR) with EJB 3.0 + JPA + Hibernate + JSF 1.2 +
Facelets that execute with success in a JBoss 4.2.1.GA, but now I have a requirement (of
my customer) to execute this App in a JBoss 4.0.4RC1.

  Well, 
     When I try deploy my EAR I receive this error messages:

  |  ERROR [[/DMS-Reports]] StandardWrapper.Throwable
  | java.lang.IllegalStateException: No Factories configured for this Application -
typically this is because a context listener is not setup in your web.xml.
  | A typical config looks like this;
  | <listener>
  |  
<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
  | </listener>
  | 
  |         at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:84)
  |         at javax.faces.webapp.FacesServlet.init(FacesServlet.java:84)
  |         at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
  |         at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925)
  |         at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3880)
  |         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4141)
  |         at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
  |         at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
  |         at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
  |         at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.apache.catalina.core.StandardContext.init(StandardContext.java:5031)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
  |         at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at
org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:297)
  |         at
org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:103)
  |         at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:371)
  |         at org.jboss.web.WebModule.startModule(WebModule.java:83)
  |         at org.jboss.web.WebModule.startService(WebModule.java:61)
  |         at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
  |         at
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
  |         at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:974)
  |         at $Proxy0.start(Unknown Source)
  |         at org.jboss.system.ServiceController.start(ServiceController.java:417)
  |         at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
  |         at $Proxy32.start(Unknown Source)
  |         at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:469)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  |         at
org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
  |         at $Proxy33.start(Unknown Source)
  |         at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
  |         at org.jboss.deployment.MainDeployer.start(MainDeployer.java:997)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
  |         at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
  |         at $Proxy8.deploy(Unknown Source)
  |         at
org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:334)
  |         at
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:522)
  |         at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:207)
  |         at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:218)
  |         at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:197)
  | 14:47:40,444 ERROR [[/DMS-Reports]] Servlet /DMS-Reports threw load() exception
  | java.lang.IllegalStateException: No Factories configured for this Application -
typically this is because a context listener is not setup in your web.xml.
  | A typical config looks like this;
  | <listener>
  |  
<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
  | </listener>
  | 
  |         at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:84)
  |         at javax.faces.webapp.FacesServlet.init(FacesServlet.java:84)
  |         at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
  |         at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925)
  |         at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3880)
  |         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4141)
  |         at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
  |         at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
  |         at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
  |         at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.apache.catalina.core.StandardContext.init(StandardContext.java:5031)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
  |         at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at
org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:297)
  |         at
org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:103)
  |         at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:371)
  |         at org.jboss.web.WebModule.startModule(WebModule.java:83)
  |         at org.jboss.web.WebModule.startService(WebModule.java:61)
  |         at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
  |         at
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
  |         at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:974)
  |         at $Proxy0.start(Unknown Source)
  |         at org.jboss.system.ServiceController.start(ServiceController.java:417)
  |         at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
  |         at $Proxy32.start(Unknown Source)
  |         at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:469)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  |         at
org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
  |         at $Proxy33.start(Unknown Source)
  |         at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
  |         at org.jboss.deployment.MainDeployer.start(MainDeployer.java:997)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
  |         at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
  |         at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:597)
  |         at
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:260)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:190)
  |         at $Proxy8.deploy(Unknown Source)
  |         at
org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:334)
  |         at
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:522)
  |         at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:207)
  |         at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:218)
  |         at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:197)
  | 14:47:40,494 INFO  [EARDeployer] Started J2EE application:
file:/home/leandro/projetos/clients/digitel/Maragato/jboss-4.0.4RC1/server/default/deploy/MaragatoWeb.ear
  | 

In my web.xml I have this code:

  | 
  | <?xml version="1.0" encoding="UTF-8"?>
  | <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  |     <display-name>DMS-Report</display-name>
  |     <!-- Define the basename for a resource bundle for I18N -->
  |     <context-param>
  |        
<param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
  |         <param-value>messages</param-value>
  |     </context-param>
  |     <!-- Multiple Config Files
  |     <context-param>
  |     	<param-name>javax.faces.CONFIG_FILES</param-name>
  |    
	<param-value>/WEB-INF/faces-config.xml,/WEB-INF/faces-navigation.xml</param-value>
  |     </context-param>
  |      -->
  |     <!-- Use Documents Saved as *.xhtml -->    
  |     <context-param>
  |         <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
  |         <param-value>.xhtml</param-value>
  |     </context-param>    
  |     <!-- Special Debug Output for Development -->
  |     <context-param>
  |         <param-name>facelets.DEVELOPMENT</param-name>
  |         <param-value>true</param-value>
  |     </context-param>
  |     <context-param>
  |         <param-name>facelets.REFRESH_PERIOD</param-name>
  |         <param-value>2</param-value>
  |     </context-param>    
  |     <!-- Optional JSF-RI Parameters to Help Debug -->
  |     <context-param>
  |         <param-name>com.sun.faces.validateXml</param-name>
  |         <param-value>true</param-value>
  |     </context-param>
  |     <context-param>
  |         <param-name>com.sun.faces.verifyObjects</param-name>
  |         <param-value>false</param-value>
  |     </context-param>
  |     <context-param>
  |         <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
  |         <param-value>client</param-value>
  |     </context-param>    
  |     <!-- RichFaces -->
  |     <context-param>
  |         <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name>
  |         <param-value>com.sun.facelets.FaceletViewHandler</param-value>
  |     </context-param>
  |     <context-param>
  |         <param-name>org.ajax4jsf.COMPRESS_SCRIPT</param-name>
  |         <param-value>false</param-value>
  |     </context-param>
  |     <context-param>
  |         <param-name>org.ajax4jsf.xmlparser.ORDER</param-name>
  |         <param-value>NEKO</param-value>
  |     </context-param>
  |     <filter>
  |         <filter-name>messageFilter</filter-name>
  |         <filter-class>com.digitel.servlet.MessageFilter</filter-class>
  |     </filter>
  |     <filter>
  |         <filter-name>autenticationFilter</filter-name>
  |        
<filter-class>com.digitel.servlet.AutenticationFilter</filter-class>
  |     </filter>
  |     <!-- RichFaces -->
  |     <filter>
  |         <display-name>Ajax4jsf Filter</display-name>
  |         <filter-name>ajax4jsf</filter-name>
  |         <filter-class>org.ajax4jsf.Filter</filter-class>
  |     </filter>
  |     <filter-mapping>
  |         <filter-name>ajax4jsf</filter-name>
  |         <servlet-name>Faces Servlet</servlet-name>
  |         <dispatcher>FORWARD</dispatcher>
  |         <dispatcher>REQUEST</dispatcher>
  |         <dispatcher>INCLUDE</dispatcher>
  |         <dispatcher>ERROR</dispatcher>
  |     </filter-mapping>
  |     <filter-mapping>
  |         <filter-name>messageFilter</filter-name>
  |         <url-pattern>/*</url-pattern>
  |         <dispatcher>REQUEST</dispatcher>
  |         <dispatcher>FORWARD</dispatcher>
  |     </filter-mapping>
  |     <filter-mapping>
  |         <filter-name>autenticationFilter</filter-name>
  |         <url-pattern>/*</url-pattern>
  |         <dispatcher>REQUEST</dispatcher>
  |         <dispatcher>FORWARD</dispatcher>
  |     </filter-mapping>
  |     <!--listener>
  |        
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
  |     </listener>    
  |     <listener>
  |        
<listener-class>com.sun.faces.application.WebappLifecycleListener</listener-class>
  |     </listener-->
  |     <servlet>
  |         <servlet-name>MailServlet</servlet-name>
  |         <servlet-class>com.digitel.servlet.MailServlet</servlet-class>
  |     </servlet>
  |     <servlet>
  |         <servlet-name>Faces Servlet</servlet-name>
  |         <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
  |         <load-on-startup>1</load-on-startup>
  |     </servlet>
  |     <servlet-mapping>
  |         <servlet-name>Faces Servlet</servlet-name>
  |         <url-pattern>*.faces</url-pattern>
  |     </servlet-mapping>
  |     <servlet-mapping>
  |         <servlet-name>MailServlet</servlet-name>
  |         <url-pattern>/MailServlet</url-pattern>
  |     </servlet-mapping>
  |     <servlet>
  |         <servlet-name>ListarElementos</servlet-name>
  |         <servlet-class>com.digitel.web.ListarElementos</servlet-class>
  |     </servlet>
  |     <servlet-mapping>
  |         <servlet-name>ListarElementos</servlet-name>
  |         <url-pattern>/ListarElementos</url-pattern>
  |     </servlet-mapping>
  |     <session-config>
  |         <session-timeout>
  |             30
  |         </session-timeout>
  |     </session-config>
  |     <welcome-file-list>
  |         <welcome-file>
  |             index.jsp
  |         </welcome-file>
  |     </welcome-file-list>    
  | </web-app>
  | 

Any idea ?

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[jboss-user] [EJB 3.0] - DownGrade: A Enterprise Application of JBoss 4.2.1.GA to JBo