JSF2錯誤[org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage]錯誤呈現視圖[/ WEB-INF/*。xhtml]：java.lang.NullPointerException

我在Jboss 7.0.2 Arc，JSP中有錯誤2.1（MyFaces的），RichFaces的4，這是我的web.xmlJSF2錯誤[org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage]錯誤呈現視圖[/ WEB-INF/*。xhtml]：java.lang.NullPointerException

<?xml version="1.0" encoding="UTF-8"?> 
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns="http://java.sun.com/xml/ns/javaee"   xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
    version="3.0"> 

    <!-- Log4j configurated in spring!!!, 
    before any code directly calling log4j (calling through commons logging doesn't count)? Jing Xue --> 
<context-param> 
    <param-name>log4jConfigLocation</param-name> 
    <param-value>/WEB-INF/log4j-webapp.properties</param-value> 
</context-param> 
<context-param> 
    <param-name>log4jRefreshInterval</param-name> 
    <param-value>1000</param-value> 
</context-param> 

<context-param> 
    <param-name>webAppRootKey</param-name> 
    <param-value>myWebapp-instance-root</param-value> 
</context-param> 

<listener> 
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> 
</listener> 

    <display-name>richfaces-application</display-name> 
    <!-- Listener para crear el Spring Container compartido por todos los Servlets y Filters (WebApplication Context)--> 
    <context-param> 
<param-name>contextConfigLocation</param-name> 
<param-value> 
    classpath*:META-INF/spring/spring-master.xml 
    WEB-INF/spring/spring-security.xml 
</param-value> 
    </context-param> 

<listener> 
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
</listener> 
    <!-- For JSF --> 
<listener> 
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class> 
</listener> 
    <!-- Jboss not use it bundle integrated JSF --> 
<context-param> 
    <param-name>org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL</param-name> 
    <param-value>true</param-value> 
    </context-param> 

    <!-- Facelets, tell JSF to use Facelets --> 
<context-param> 
    <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name> 
    <param-value>com.sun.facelets.FaceletViewHandler</param-value> 
    </context-param> 

    <!-- Spring JavaServiceFaces framework ApacheMyfaces --> 
    <listener> 
    <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class> 
    </listener> 

    <!-- Spring Security, for all --> 
<filter> 
    <filter-name>springSecurityFilterChain</filter-name> 
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> 
</filter> 
<filter-mapping> 
    <filter-name>springSecurityFilterChain</filter-name> 
    <url-pattern>/*</url-pattern> 
</filter-mapping> 

    <!-- RichFaces Framework --> 
<context-param> 
<param-name>org.richfaces.SKIN</param-name> 
<param-value>blueSky</param-value> 
</context-param> 

<!-- For control of skins --> 
<context-param> 
<param-name>org.richfaces.CONTROL_SKINNING_CLASSES</param-name> 
<param-value>enable</param-value> 
</context-param> 

    <!-- Servlets for JSF--> 
<servlet> 
    <servlet-name>faces</servlet-name> 
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> 
    <load-on-startup>1</load-on-startup> 
</servlet> 
<servlet-mapping> 
    <servlet-name>faces</servlet-name> 
    <url-pattern>*.xhtml</url-pattern> 
    <url-pattern>/faces/*</url-pattern> 
    </servlet-mapping> 

    <!-- Servlet for Dispatcher of flows --> 
    <servlet> 
    <servlet-name>transportes</servlet-name> 
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
    <init-param> 
    <param-name>contextConfigLocation</param-name> 
    <param-value>WEB-INF/spring/transportes-servlet.xml</param-value> 
</init-param> 
<load-on-startup>2</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
    <servlet-name>transportes</servlet-name> 
    <url-pattern>/flows/*</url-pattern> 
    </servlet-mapping> 

    <!-- Servlet register for SpringFaces, SpringJavaScript --> 
<servlet> 
    <servlet-name>resources</servlet-name> 
    <servlet-class>org.springframework.js.resource.ResourceServlet</servlet-class> 
    <load-on-startup>0</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
    <servlet-name>resources</servlet-name> 
    <url-pattern>/resources/*</url-pattern> 
    </servlet-mapping> 

    <!-- Page That control SpringWeb --> 

    <welcome-file-list> 
    <welcome-file>/WEB-INF/flows/inscripcion/login.xhtml</welcome-file> 
    </welcome-file-list> 
    </web-app>

和錯誤：

12:58:15,480 INFO [org.apache.myfaces.util.ExternalSpecifications] (http--127.0.0.1-8080-2) MyFaces Unified EL support enabled 
    12:58:15,596 INFO [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/projvehimerc]] (http--127.0.0.1-8080-2) No state saving method defined, assuming default server state saving 
    12:58:15,737 SEVERE [org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage] (http--127.0.0.1-8080-2) Error Rendering View[//WEB-INF/flows/inscripcion/login.xhtml]: java.lang.NullPointerException 
     at org.springframework.faces.webflow.FlowViewStateManager.saveView(FlowViewStateManager.java:181) [spring-faces-2.3.0.RELEASE.jar:] 
     at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1554) [myfaces-impl-2.1.1.jar:] 
     at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:281) [myfaces-impl-2.1.1.jar:] 
     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:59) [myfaces-api-2.1.1.jar:] 
     at org.springframework.faces.webflow.FlowViewHandler.renderView(FlowViewHandler.java:99) [spring-faces-2.3.0.RELEASE.jar:] 
     at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:85) [myfaces-impl-2.1.1.jar:] 
     at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:239) [myfaces-impl-2.1.1.jar:] 
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191) [myfaces-api-2.1.1.jar:] 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:343) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:90) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:188) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:149) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) [spring-web-3.0.5.RELEASE.jar:] 
     at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) [spring-web-3.0.5.RELEASE.jar:] 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:139) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final] 
     at org.jboss.as.web.NamingValve.invoke(NamingValve.java:57) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:154) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at java.lang.Thread.run(Thread.java:662) [:1.6.0_25] 

    12:58:15,766 SEVERE [org.apache.myfaces.renderkit.ErrorPageWriter] (http--127.0.0.1-8080-2) An exception occurred: javax.faces.FacesException: java.lang.NullPointerException 
     at org.apache.myfaces.shared_impl.context.ExceptionHandlerImpl.wrap(ExceptionHandlerImpl.java:241) [myfaces-impl-2.1.1.jar:] 
     at org.apache.myfaces.shared_impl.context.ExceptionHandlerImpl.handle(ExceptionHandlerImpl.java:156) [myfaces-impl-2.1.1.jar:] 
     at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:258) [myfaces-impl-2.1.1.jar:] 
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191) [myfaces-api-2.1.1.jar:] 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:343) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:90) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:188) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:149) [spring-security-web-3.0.2.RELEASE.jar:] 
     at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) [spring-web-3.0.5.RELEASE.jar:] 
     at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) [spring-web-3.0.5.RELEASE.jar:] 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:139) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final] 
     at org.jboss.as.web.NamingValve.invoke(NamingValve.java:57) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:154) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.1.Final.jar:7.0.2.Final] 
     at java.lang.Thread.run(Thread.java:662) [:1.6.0_25] 
    Caused by: java.lang.NullPointerException 
     at org.springframework.faces.webflow.FlowViewStateManager.saveView(FlowViewStateManager.java:181) [spring-faces-2.3.0.RELEASE.jar:] 
     at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1554) [myfaces-impl-2.1.1.jar:] 
     at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:281) [myfaces-impl-2.1.1.jar:] 
     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:59) [myfaces-api-2.1.1.jar:] 
     at org.springframework.faces.webflow.FlowViewHandler.renderView(FlowViewHandler.java:99) [spring-faces-2.3.0.RELEASE.jar:] 
     at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:85) [myfaces-impl-2.1.1.jar:] 
     at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:239) [myfaces-impl-2.1.1.jar:] 
     ... 44 more

來源

2011-09-30 Vodo-Siosk Baas

請分享完整的堆棧跟蹤。 – BalusC

這是我的完整提示：https://rapidshare.com/files/2875600858/log14.zip –

請編輯您的問題以包含跟蹤。沒有人會下載並提取一些外部文件。對於一年後回來閱讀問題/答案的情況，這也不是一個可靠的資源。 – BalusC

這裏的根本原因（跟蹤的最底部）：

Caused by: java.lang.NullPointerException 
    at org.springframework.faces.webflow.FlowViewStateManager.saveView(FlowViewStateManager.java:181) [spring-faces-2.3.0.RELEASE.jar:]

1st Google hit on this line將我們引導至SWF bug report 1461。這顯然是SWF 2.3.0中的一個公認錯誤。根據鏈接的錯誤報告，它已在SWF 2.3.1中修復。所以，升級應該做。

來源

2011-09-30 18:24:47 BalusC

那麼真的SWF，這是固定的這是\t 2.3.0.BUILD-SNAPSHOT，thiks沒有你的幫助我無法很快解決這個問題。 –

JSF2錯誤[org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage]錯誤呈現視圖[/ WEB-INF/*。xhtml]：java.lang.NullPointerException

回答

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