Hi It is a known issue, so you can take a look at MYFACES-2434 too.
http://issues.apache.org/jira/browse/MYFACES-2434 http://issues.apache.org/jira/browse/MYFACES-2520 regards, Leonardo Uribe 2010/2/25 Jakob Korherr <jakob.korh...@gmail.com> > 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. > > > > >
