Hi, Are you using the latest versions of MyFaces Core and Trinidad? There already has been some work on this issue (see MYFACES-2520 for details) and this should be fixed.
Regards, Jakob 2010/2/25 navnath29 <kumbhar.navn...@gmail.com> > > Hi there, > > I am trying to implement jsf in my existing java project. > So I have added required jar files and update web.xml > When I run server I found out error something like this > > java.lang.UnsupportedOperationException: This request class is an empty > placeholder > at > > org.apache.myfaces.application._SystemEventServletRequest$1.invoke(_SystemEventServletReq > uest.java:56) > at $Proxy0.getContentType(Unknown Source) > at > > javax.servlet.ServletRequestWrapper.getContentType(ServletRequestWrapper.java:134) > at > > org.apache.myfaces.context.servlet.ServletExternalContextImpl.getRequestContentType(Servl > etExternalContextImpl.java:322) > at > > org.apache.myfaces.trinidad.util.ExternalContextUtils.getContentType(ExternalContextUtils > .java:341) > at > > org.apache.myfaces.trinidadinternal.share.util.MultipartFormHandler.isMultipartRequest(Mu > ltipartFormHandler.java:57) > at > > org.apache.myfaces.trinidadinternal.config.upload.FileUploadConfiguratorImpl.beginRequest > (FileUploadConfiguratorImpl.java:109) > at > > org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl._startConfiguratorServi > ceRequest(GlobalConfiguratorImpl.java:532) > at > > org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl.beginRequest(GlobalConf > iguratorImpl.java:211) > at > > org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl.getExternalContext(Glob > alConfiguratorImpl.java:327) > at > > org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl$CacheRenderKit.<init> > (FacesContextFactoryImpl.java:90) > at > > org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl.getFacesContext(Faces > ContextFactoryImpl.java:68) > at > > org.apache.myfaces.webapp.AbstractFacesInitializer.dispatchInitDestroyEvent(AbstractFaces > Initializer.java:140) > at > > org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.jav > a:109) > at > > org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServlet > ContextListener.java:155) > at > > org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934) > at > org.apache.catalina.core.StandardContext.start(StandardContext.java:4429) > at > > org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) > at > org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) > at > org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526) > at > org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:987) > at > > org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:909) > at > org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:495) > at > org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206) > at > org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314) > at > > org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) > at > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) > at > org.apache.catalina.core.StandardHost.start(StandardHost.java:722) > at > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) > at > org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) > at > org.apache.catalina.core.StandardService.start(StandardService.java:516) > at > org.apache.catalina.core.StandardServer.start(StandardServer.java:710) > at org.apache.catalina.startup.Catalina.start(Catalina.java:583) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) > Feb 25, 2010 4:43:51 PM org.apache.myfaces.webapp.AbstractFacesInitializer > initFaces > SEVERE: An error occured while initializing MyFaces: This request class is > an empty placeholder > java.lang.UnsupportedOperationException: This request class is an empty > placeholder > at > > org.apache.myfaces.application._SystemEventServletRequest$1.invoke(_SystemEventServletReq > uest.java:56) > at $Proxy0.getHeader(Unknown Source) > at > > javax.servlet.http.HttpServletRequestWrapper.getHeader(HttpServletRequestWrapper.java:80) > > at > > org.apache.myfaces.trinidadinternal.context.external.ServletRequestHeaderMap.getAttribute > (ServletRequestHeaderMap.java:42) > at > > org.apache.myfaces.trinidadinternal.context.external.ServletRequestHeaderMap.getAttribute > (ServletRequestHeaderMap.java:30) > at > > org.apache.myfaces.trinidadinternal.context.external.AbstractAttributeMap.get(AbstractAtt > ributeMap.java:73) > at > > org.apache.myfaces.trinidadinternal.renderkit.core.CoreRenderKit.isAjaxRequest(CoreRender > Kit.java:148) > at > > org.apache.myfaces.trinidadinternal.renderkit.core.CoreRenderKit.isPartialRequest(CoreRen > derKit.java:163) > at > > org.apache.myfaces.trinidadinternal.config.xmlHttp.XmlHttpConfigurator.getExternalContext > (XmlHttpConfigurator.java:61) > at > > org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl.getExternalContext(Glob > alConfiguratorImpl.java:351) > at > > org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl$CacheRenderKit.<init> > (FacesContextFactoryImpl.java:90) > at > > org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl.getFacesContext(Faces > ContextFactoryImpl.java:68) > at > > org.apache.myfaces.webapp.AbstractFacesInitializer.dispatchInitDestroyEvent(AbstractFaces > Initializer.java:140) > at > > org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.jav > a:109) > at > > org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServlet > ContextListener.java:155) > at > > org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934) > at > org.apache.catalina.core.StandardContext.start(StandardContext.java:4429) > at > > org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) > at > org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) > at > org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526) > at > org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:987) > at > > org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:909) > at > org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:495) > at > org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206) > at > org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314) > at > > org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) > at > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) > at > org.apache.catalina.core.StandardHost.start(StandardHost.java:722) > at > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) > at > org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) > at > org.apache.catalina.core.StandardService.start(StandardService.java:516) > at > org.apache.catalina.core.StandardServer.start(StandardServer.java:710) > at org.apache.catalina.startup.Catalina.start(Catalina.java:583) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) > > > I have search with this error on forums, but no one resolve it. > Could you please help me out regarding this issue? > At least, let me know the exact problem, so that I can work on it. > > Thank You. > -- > View this message in context: > http://old.nabble.com/Request-class-is-an-empty-placeholder-tp27714410p27714410.html > Sent from the MyFaces - Users mailing list archive at Nabble.com. > >