UnupportedOperationExcaption

[Khurram Ahmed]

MyFaces version 1.1.1
Nightly build = 6-Dec-2005
Application Server = Oracle Application Server 10.1.2.0.2
Servlet Container = OC4J
J2EE version = 1.3



I am getting the following error while running my application.

javax.faces.FacesException: Error calling action method of component with id _id0:navLogout

at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)

at javax.faces.component.UICommand.broadcast(UICommand.java:106)

at org.apache.myfaces.custom.navigation.HtmlCommandNavigation.broadcast(HtmlCommandNavigation.java:225)

at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:90)

at  javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:132)

at org.apache.myfaces.lifecycle.LifecycleImpl.applyRequestValues (LifecycleImpl.java:219)

at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java :71)

at javax.faces.webapp.FacesServlet.service(FacesServlet.java:106)

at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ResourceFilterChain.doFilter( ResourceFilterChain.java:65)

at org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter (ExtensionsFilter.java:123)

at com.evermind[Oracle Application Server Containers for J2EE 10g ( 10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)

at  com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)

at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)

at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run( AJPRequestHandler.java:224)

at com.evermind[Oracle Application Server Containers for J2EE 10g ( 10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)

at com.evermind[Oracle Application Server Containers for J2EE 10g ( 10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)

at java.lang.Thread.run(Thread.java:534)

Caused by: javax.faces.el.EvaluationException : Exception while invoking _expression_ #{user.logOut}

at org.apache.myfaces.el.MethodBindingImpl.invoke (MethodBindingImpl.java:153)

at org.apache.myfaces.application.ActionListenerImpl.processAction (ActionListenerImpl.java:63)

... 16 more

Caused by: java.lang.UnsupportedOperationException

at org.apache.myfaces.context.servlet.SessionMap.clear(SessionMap.java:84)

at  org.myorg.jsf.UserBean.logOut(UserBean.java:68)

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:324)

at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129) The same piece of code causes the following error on tomcat 5.0.27 though it isnt logged on the console. 2005-12-10 13:06:56 StandardWrapperValve[Faces Servlet]: Servlet.service() for servlet Faces Servlet threw exception javax.faces.FacesException: Error calling action method of component with id _id0:navLogout     at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)     at javax.faces.component.UICommand.broadcast(UICommand.java:106)     at org.apache.myfaces.custom.navigation.HtmlCommandNavigation.broadcast(HtmlCommandNavigation.java:225)     at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:90)     at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:132)     at org.apache.myfaces.lifecycle.LifecycleImpl.applyRequestValues(LifecycleImpl.java:219)     at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:71)     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:106)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)     at org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:123)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)     at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)     at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)     at java.lang.Thread.run(Thread.java:534) Caused by: javax.faces.el.EvaluationException: Exception while invoking _expression_ #{user.logOut}     at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)     at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)     ... 34 more Caused by: java.lang.UnsupportedOperationException     at org.apache.myfaces.context.servlet.SessionMap.clear(SessionMap.java:84)     at org.imf.jsf.UserBean.logOut(UserBean.java:68)     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:324)     at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)     ... 35 more The offending piece of code is FacesContext.getCurrentInstance().getExternalContext().getSessionMap().clear(); Can anyone help me work out what is going wrong?