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https://issues.apache.org/jira/browse/MYFACES-2520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12806311#action_12806311
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Werner Punz edited comment on MYFACES-2520 at 1/29/10 11:42 AM:
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Ok another analysis, trinidad probably uses the system event, but that one is
called outside of any real request (understandable since the destroy etc... is
request independend) and getContentType then runs into this issue,
unfortunately.
One solution would be to delegate what is possible to the servlet context object
so that we at least can cover parts of the servlet functionality,
In this case getRequestContentType is questionable since we probably dont even
have a request here since we still are in the init part of the system.
was (Author: werpu):
Ok another analysis, trinidad probably uses the system event, but that one
is called outside of any real request (understandable since the destroy etc...
is request independend) and getContentType then runs into this issue,
unfortunately.
One solution would be to delegate what is possible to the servlet context object
so that we at least can cover parts of the servlet functionality,
the getContentType for instance would be implementable by rerouting against
getMimeType of the context object.
> UnsupportedOperationException when launching Trinidad 2 w/ MyFaces2 in Jetty
> ----------------------------------------------------------------------------
>
> Key: MYFACES-2520
> URL: https://issues.apache.org/jira/browse/MYFACES-2520
> Project: MyFaces Core
> Issue Type: Bug
> Components: JSR-314
> Affects Versions: 2.0.0-beta-2
> Reporter: Matthias Weßendorf
>
> SEVERE:
> java.lang.UnsupportedOperationException: This request class is an empty
> placeholder
> at
> org.apache.myfaces.application._SystemEventServletRequest$1.invoke(_SystemEventServletRequest.java:56)
> at $Proxy0.getContentType(Unknown Source)
> at
> javax.servlet.ServletRequestWrapper.getContentType(ServletRequestWrapper.java:145)
> at
> org.apache.myfaces.context.servlet.ServletExternalContextImpl.getRequestContentType(ServletExternalContextImpl.java:322)
> at
> org.apache.myfaces.trinidad.util.ExternalContextUtils.getContentType(ExternalContextUtils.java:341)
> at
> org.apache.myfaces.trinidadinternal.share.util.MultipartFormHandler.isMultipartRequest(MultipartFormHandler.java:57)
> at
> org.apache.myfaces.trinidadinternal.config.upload.FileUploadConfiguratorImpl.beginRequest(FileUploadConfiguratorImpl.java:109)
> at
> org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl._startConfiguratorServiceRequest(GlobalConfiguratorImpl.java:532)
> at
> org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl.beginRequest(GlobalConfiguratorImpl.java:211)
> at
> org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl.getExternalContext(GlobalConfiguratorImpl.java:327)
> at
> org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl$CacheRenderKit.<init>(FacesContextFactoryImpl.java:90)
> at
> org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl.getFacesContext(FacesContextFactoryImpl.java:68)
> at
> org.apache.myfaces.webapp.AbstractFacesInitializer.dispatchInitDestroyEvent(AbstractFacesInitializer.java:140)
> at
> org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:109)
> at
> org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:155)
> at
> org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
> at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
> at
> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
> at
> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
> at
> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
> at
> org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:115)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
> at org.mortbay.jetty.Server.doStart(Server.java:224)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132)
> at
> org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:441)
> at
> org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:383)
> at
> org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:210)
> at
> org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:184)
> at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
> at
> org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
> 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.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
> at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
> at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
> at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> Jan 29, 2010 11:38:07 AM 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(_SystemEventServletRequest.java:56)
> at $Proxy0.getHeader(Unknown Source)
> at
> javax.servlet.http.HttpServletRequestWrapper.getHeader(HttpServletRequestWrapper.java:91)
> at
> org.apache.myfaces.trinidadinternal.context.external.ServletRequestHeaderMap.getAttribute(ServletRequestHeaderMap.java:42)
> at
> org.apache.myfaces.trinidadinternal.context.external.ServletRequestHeaderMap.getAttribute(ServletRequestHeaderMap.java:30)
> at
> org.apache.myfaces.trinidadinternal.context.external.AbstractAttributeMap.get(AbstractAttributeMap.java:73)
> at
> org.apache.myfaces.trinidadinternal.renderkit.core.CoreRenderKit.isAjaxRequest(CoreRenderKit.java:148)
> at
> org.apache.myfaces.trinidadinternal.renderkit.core.CoreRenderKit.isPartialRequest(CoreRenderKit.java:163)
> at
> org.apache.myfaces.trinidadinternal.config.xmlHttp.XmlHttpConfigurator.getExternalContext(XmlHttpConfigurator.java:61)
> at
> org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl.getExternalContext(GlobalConfiguratorImpl.java:351)
> at
> org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl$CacheRenderKit.<init>(FacesContextFactoryImpl.java:90)
> at
> org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl.getFacesContext(FacesContextFactoryImpl.java:68)
> at
> org.apache.myfaces.webapp.AbstractFacesInitializer.dispatchInitDestroyEvent(AbstractFacesInitializer.java:140)
> at
> org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:109)
> at
> org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:155)
> at
> org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
> at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
> at
> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
> at
> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
> at
> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
> at
> org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:115)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
> at org.mortbay.jetty.Server.doStart(Server.java:224)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132)
> at
> org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:441)
> at
> org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:383)
> at
> org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:210)
> at
> org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:184)
> at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
> at
> org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
> 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.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
> at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
> at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
> at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
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