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 resolve it.
Thank You.
--
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