weblogic9.2.3.0的有关问题处理办法

<2012-2-26 下午03时20分41秒 GMT+08:00> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to STARTING> 
<2012-2-26 下午03时20分45秒 GMT+08:00> <Warning> <HTTP> <BEA-101299> <The servlet-mapping for servlet-name "CmsFront" will override the default mapping for *.jsp. This can lead to a show code vulnerability.> 
<2012-2-26 下午03时20分46秒 GMT+08:00> <Error> <HTTP> <BEA-101163> <Could not load user defined listener: com.sun.faces.config.ConfigureListener
java.lang.NoClassDefFoundError: javax/el/ExpressionFactory
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2384)
        at java.lang.Class.getConstructor0(Class.java:2698)
        at java.lang.Class.newInstance0(Class.java:325)
        at java.lang.Class.newInstance(Class.java:307)
        Truncated. see log file for complete stacktrace
> 
<2012-2-26 下午03时20分47秒 GMT+08:00> <Error> <Deployer> <BEA-149205> <Failed to initialize the application 'app' due to error weblogic.application.ModuleException: .
weblogic.application.ModuleException: 
        at weblogic.servlet.internal.WebAppModule.prepare(WebAppModule.java:292)
        at weblogic.application.internal.flow.ScopedModuleDriver.prepare(ScopedModuleDriver.java:176)
        at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:93)
        at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:360)
        at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)
        Truncated. see log file for complete stacktrace
java.lang.NoClassDefFoundError: javax/el/ExpressionFactory
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2384)
        at java.lang.Class.getConstructor0(Class.java:2698)
        at java.lang.Class.newInstance0(Class.java:325)
        at java.lang.Class.newInstance(Class.java:307)
        Truncated. see log file for complete stacktrace
> 
<2012-2-26 下午03时20分47秒 GMT+08:00> <Notice> <Log Management> <BEA-170027> <The server initialized the domain log broadcaster successfully. Log messages will now be broadcasted to the domain log.>