NullPointerException异常在com.sun.faces.application.view.FaceletViewHandlingStrategy.createView

问题描述：

我试图从JSF 1.2升级到2.2.2 JSF在WebSphere 8.5.1 和我所做的是如下：NullPointerException异常在com.sun.faces.application.view.FaceletViewHandlingStrategy.createView

1 - 把jsf-api-2.2.2.jar和jsf-impl-2.2.2.jar在我的lib文件夹中。

2- web.xml中的改变的报头以如下：

<web-app 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
    id="YourWebappID" 
    version="2.5">

3-改变faces-config.xml中头如下：

<faces-config 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd" 
    version="2.0">

4-更改面部servlet如下：

<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>Faces Servlet</servlet-name> 
     <url-pattern>*.jsf</url-pattern> 
    </servlet-mapping> 
    <servlet-mapping> 
     <servlet-name>Faces Servlet</servlet-name> 
     <url-pattern>*.faces</url-pattern> 
    </servlet-mapping> 
    <servlet-mapping> 
    <servlet-name>Faces Servlet</servlet-name> 
    <url-pattern>*.xhtml</url-pattern> 
    </servlet-mapping>

5-将类加载器更改为b e父母最后在websphere上，我可以在日志中看到mojara已成功初始化。

6-我XHTML页面是：

<!DOCTYPE html> 
<html lang="en" 
    xmlns:f="http://java.sun.com/jsf/core" 
    xmlns:h="http://java.sun.com/jsf/html" 
    xmlns:ui="http://java.sun.com/jsf/facelets"> 
    <h:head> 
     <title></title> 
    </h:head> 
    <h:body> 
     <h3>JSF 2.0 Hello World</h3> 
     <h:form> 
      <h:inputText id="sname" value="test" /> 
     </h:form>    
    </h:body> 
</html>

，我收到以下异常：

com.ibm.ws.webcontainer.servlet.ServletWrapper service SRVE0014E: Uncaught service() exception root cause Faces Servlet: javax.servlet.ServletException 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1224) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:774) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:456) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97) 
    at com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:225) 
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91) 
    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:164) 
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91) 
    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50) 
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:928) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1025) 
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3748) 
    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304) 
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:962) 
    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662) 
    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:459) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:526) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:312) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:283) 
    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214) 
    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113) 
    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) 
    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) 
    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) 
    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) 
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) 
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) 
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) 
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1814) 
Caused by: java.lang.NullPointerException 
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.createView(FaceletViewHandlingStrategy.java:812) 
    at com.sun.faces.application.view.MultiViewHandler.createView(MultiViewHandler.java:166) 
    at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.createView(ViewHandlerImpl.java:225) 
    at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:254) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:121) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646) 
    ... 36 more 

[2/26/14 12:50:50:839 AST] 0000009a FfdcProvider W com.ibm.ws.ffdc.impl.FfdcProvider logIncident FFDC1003I: FFDC Incident emitted on D:\IBM\WebSphere\AppServer\profiles\CPAppSrv\logs\ffdc\server1_71182b64_14.02.26_12.50.50.8215897287481496037428.txt com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter 82 
[2/26/14 12:50:50:856 AST] 0000009a FfdcProvider W com.ibm.ws.ffdc.impl.FfdcProvider logIncident FFDC1003I: FFDC Incident emitted on D:\IBM\WebSphere\AppServer\profiles\CPAppSrv\logs\ffdc\server1_71182b64_14.02.26_12.50.50.8391240912466991529797.txt com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter 144 
[2/26/14 12:50:50:856 AST] 0000009a FfdcProvider W com.ibm.ws.ffdc.impl.FfdcProvider logIncident FFDC1003I: FFDC Incident emitted on D:\IBM\WebSphere\AppServer\profiles\CPAppSrv\logs\ffdc\server1_71182b64_14.02.26_12.50.50.8561570983167716244235.txt com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters -SE 1078 
[2/26/14 12:50:50:856 AST] 0000009a webapp  E com.ibm.ws.webcontainer.webapp.WebApp logServletError SRVE0293E: [Servlet Error]-[Faces Servlet]: java.lang.NullPointerException 
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.createView(FaceletViewHandlingStrategy.java:812) 
    at com.sun.faces.application.view.MultiViewHandler.createView(MultiViewHandler.java:166) 
    at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.createView(ViewHandlerImpl.java:225) 
    at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:254) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:121) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1224) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:774) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:456) 
    at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:136) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:97) 
    at com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:225) 
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91) 
    at com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter.doFilter(SecurityPluginFilter.java:164) 
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91) 
    at com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter.doFilter(ThreadLocalCleanupFilter.java:50) 
    at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:195) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:91) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:928) 
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1025) 
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3748) 
    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304) 
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:962) 
    at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1662) 
    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:459) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:526) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:312) 
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:283) 
    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214) 
    at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113) 
    at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) 
    at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) 
    at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) 
    at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) 
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) 
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) 
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) 
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1814)

请告知这个错误，我一定要JavaEE的jar添加到我的lib文件夹？我必须在web.xml中添加jsf监听器吗？

编辑：

这是通过去除所述JSF的API-2.2.2.jar和JSF-IMPL-2.2.2.jar

并使用解决javax.faces-2.0.10.jar和jboss-el-2.0.0.GA.jar，但我想使它与

jsf-api-2.2.2.jar和jsf-impl-2.2.2.jar，请告知如何解决以上例外与最新的mojara罐子。

那你在FFDC查看日志？ –

答

通过去除JSF的API-2.2.2.jar和JSF的参数impl-2.2.2.jar

并使用javax.faces-2.0.10.jar和解决jboss-el-2.0.0.GA.jar

答

使用MyFaces JSF的WebSphere Application Server 8.5默认实现。有文章IBM Documentation如何使用不同的JSF实现。

我发现了类似的问题：http://stackoverflow.com/questions/18490391/error-in-websphere-8-5-mojarra-myfaces2-spring-webflow/22145399#22145399 –

答

JSF 2.2至少需要Servlet 3.0。阅读你的web.xml的定义，我看你仍然在使用Servlet 2.5。改变你的第一行以

<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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">

和你的面-配置定义应该是这样

<faces-config version="2.2" 
xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">

答

迁移期间也面临着同样的错误支杆 - > JSF 2。2 它是由struts-faces（1.3.8）的ViewHandlerImpl发生的。看起来像这个lib与Servlet 3不兼容（这是JSF 2.2所要求的）

PS：正在使用JSF 2.0而没有任何更改。

因此，我可以建议检查所有第三部分过滤器等，可能涉及请求处理。

注意作者，请注意您的代码：

com.filenet.ae.toolkit.server.servlet.filter.SecurityPluginFilter 
... 
com.filenet.ae.toolkit.server.servlet.filter.ThreadLocalCleanupFilter

这实际上回答了一个不同的问题。尝试找到正确的问题或只是问问自己的问题。 – BalusC

对不起，也许是的，但实际上我有相同的异常和几乎相同的堆栈跟踪 - 如此相似的问题。我发现问题出在哪里，并给出了一些镜头建议，作为挖掘方向的变体之一。因为解决方案将JSF降级到2.0是表面。 – Yaro

NullPointerException异常在com.sun.faces.application.view.FaceletViewHandlingStrategy.createView

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