我尝试将我的 JSF 2.1 Webapp 迁移到 Google App 引擎。
一切在本地开发模式下运行正常，在 GAE 上部署也正常，但是当我尝试访问任何页面时，我得到 HTTP 代码 500。日志文件显示有一个 ClassNotFoundException：
INFO: com.sun.faces.lifecycle.ELResolverInitPhaseListener populateFacesELResolverForJsp: JSF1027: [null]
The ELResolvers for JSF were not registered with the JSP container.
WARNING: populateFacesELResolverForJsp: JSF1027: [null] The ELResolvers for JSF were not registered with the JSP container.
javax.servlet.ServletException: java.lang.RuntimeException:
java.lang.ClassNotFoundException: com.sun.org.apache.xerces.internal.dom.ElementNSImpl
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:268)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:438)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:480)
at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:487)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:774)
at com.google.tracing.TraceContext$DoInTraceContext.runInContext(TraceContext.java:751)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:342)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:334)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:484)
at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
at java.lang.Thread.run(Thread.java:722)
我已经尝试部署相应的库 jaxp-ri-1.4.jar 没有效果。
有关我的配置和第三方库的更多信息：
- Mojarra JSF 2.1.12
- Primefaces 3.5
- Primefaces Extensions
- Prettyfaces 3.3.3
- Ebay Finding Api
- STATE_SAVING_METHOD set to 'client'
- i use EL 2.2 form jboss seam <context-param>
<param-name>com.sun.faces.expressionFactory</param-name>
<param-value>org.jboss.el.ExpressionFactoryImpl</param-value>
</context-param>
谢谢你的帮助！