没有意识到 servlet Faces Servlet 抛出的 init() 异常：java.lang.NullPointerException

【问题标题】：Did not realize init() exception thrown by servlet Faces Servlet: java.lang.NullPointerException没有意识到 servlet Faces Servlet 抛出的 init() 异常：java.lang.NullPointerException
【发布时间】：2013-05-02 14:56:42
【问题描述】：

我正在尝试在 WebSphere 6.1 上运行 JSF2/PrimeFaces 应用程序 我的配置如下：

  • 类加载器顺序：首先使用应用程序类加载器加载的类。
  • WAR 类加载器策略：应用程序中每个 WAR 文件的类加载器。

我的罐子如下：

all-themes-1.0.9
aopalliance-1.0
com.springsource.org.apache.commons.logging-1.1.1
commons-beanutils-1.8.3
commons-codec-1.3
commons-collections-3.2
commons-io-1.3.2
commons-lang-2.3
commons-logging-1.1.1
jsf-api-2.1.20
jsf-impl-2.1.20
jstl-1.2
log4j-1.2.16
org.springframework.binding-2.3.1.RELEASE
org.springframework.faces-2.3.1.RELEASE
org.springframework.js-2.3.1.RELEASE
org.springframework.web.servlet-3.1.1.RELEASE
org.springframework.webflow-2.3.1.RELEASE
primefaces-4.0-20130427.150835-5
slf4j-api-1.6.4
slf4j-log4j12-1.6.4
spring-aop-3.1.2.RELEASE
spring-asm-3.1.2.RELEASE
spring-beans-3.1.2.RELEASE
spring-context-3.1.2.RELEASE
spring-context-support-3.1.2.RELEASE
spring-core-3.1.2.RELEASE
spring-expression-3.1.2.RELEASE
spring-jdbc-3.1.2.RELEASE
spring-orm-3.1.2.RELEASE
spring-oxm-3.1.2.RELEASE
spring-tx-3.1.2.RELEASE
spring-web-3.1.2.RELEASE
spring-webmvc-3.1.2.RELEASE
spring-webmvc-portlet-3.1.2.RELEASE
standard-1.1.2

当尝试访问应用程序时，我得到了异常：

 SRVE0100E: Did not realize  init() exception thrown by servlet Faces Servlet: java.lang.NullPointerException
    at javax.faces.webapp.FacesServlet.init(FacesServlet.java:144)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:199)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:319)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:393)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
    at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:321)
    at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:581)
    at com.ibm.ws.wswebcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:113)
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3391)
    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:267)
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
    at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1455)
    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:115)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:458)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:387)
    at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
    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:136)
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:195)
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:743)
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:873)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)

[5/8/13 14:25:37:291 AST] 0000002c ServletWrappe E   Deregister the mbean because of uncaught init() exception thrown by servlet Faces Servlet: javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception thrown by servlet
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:251)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:319)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:393)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
    at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:321)
    at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:581)
    at com.ibm.ws.wswebcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:113)
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3391)
    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:267)
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
    at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1455)
    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:115)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:458)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:387)
    at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
    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:136)
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:195)
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:743)
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:873)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)
---- Begin backtrace for Nested Throwables
java.lang.NullPointerException
    at javax.faces.webapp.FacesServlet.init(FacesServlet.java:144)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:199)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:319)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:393)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
    at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:321)
    at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:581)
    at com.ibm.ws.wswebcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:113)
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3391)
    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:267)
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
    at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1455)
    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:115)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:458)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:387)
    at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
    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:136)
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:195)
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:743)
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:873)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)
, 
[5/8/13 14:25:37:322 AST] 0000002c WebApp        E   [Servlet Error]-[SRVE0207E: Uncaught initialization exception thrown by servlet]: java.lang.NullPointerException
    at javax.faces.webapp.FacesServlet.init(FacesServlet.java:144)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:199)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.init(ServletWrapper.java:319)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:393)
    at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
    at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:321)
    at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:581)
    at com.ibm.ws.wswebcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:113)
    at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3391)
    at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:267)
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
    at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1455)
    at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:115)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:458)
    at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:387)
    at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
    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:136)
    at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:195)
    at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:743)
    at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:873)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)

请告知如何解决，谢谢。

【问题讨论】：

    标签： jsf jsf-2 websphere websphere-6.1


    【解决方案1】： 
    > jsf-api-2.1.20
> jsf-impl-2.1.20

    来自 JSF 2.1 规范：

    其他 Java™ 平台规范

    JSF 基于以下 Java API 规范：

    • JavaServer Pages™ 规范，版本 2.1 (JSP™)
    • Java™ Servlet 规范，版本 2.5 (Servlet)
    • Java™2 ​​平台，标准版，5.0 版
    • Java™2 ​​平台，企业版，5.0 版
    • JavaBeans™ 规范，1.0.1 版
    • JavaServer Pages™ 标准标签库，版本 1.2 (JSTL)

    因此，一个 JSF 容器必须支持以上所有 规格。

    WebSphere Application Server 6.1 是一个 J2EE 1.4 实现，只有supports Servlet 2.4。

    理想情况下，您应该迁移到 WAS 8，因为 Java EE 6 平台按规范支持 JSF 2。

    【讨论】：

    • 你能告诉我最新的 JSF 版本是什么，可以与 servlet 2.4 和 WAS 6.1 一起工作，JSF 2 也可以在 WAS 7 上工作吗？
    • JSF 1.1 与 WAS6.1 兼容。 JSF 1.2 需要 servlet 2.5 并附带 Java EE 5（即 WAS 7。）有人报告了JSF 2 working on WAS 7 here。
    • 我曾经让 JSF 2.0 在 Tomcat 5.5 (Servlet 2.4) 上工作：stackoverflow.com/questions/5998447/… 但是这可能不适用于 WAS 6.x。更好地升级那只史前野兽。
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