java.lang.Exception: Stack trace
        at java.lang.Thread.dumpStack(Thread.java:1158)
        at org.apache.myfaces.examples.listexample.SimpleCountryForm.setId(Simpl
eCountryForm.java:47)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.myfaces.el.PropertyResolverImpl.setProperty(PropertyResolv
erImpl.java:409)
        at org.apache.myfaces.el.PropertyResolverImpl.setValue(PropertyResolverI
mpl.java:176)
        at org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java
:278)
        at org.apache.myfaces.custom.updateactionlistener.UpdateActionListener.p
rocessAction(UpdateActionListener.java:159)
        at javax.faces.event.ActionEvent.processListener(ActionEvent.java:51)
        at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:
636)
        at javax.faces.component.UICommand.broadcast(UICommand.java:78)
        at javax.faces.component.UIData.broadcast(UIData.java:517)
        at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:9
7)
        at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:139)
        at org.apache.myfaces.lifecycle.ApplyRequestValuesExecutor.execute(Apply
RequestValuesExecutor.java:32)
        at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl
.java:95)
        at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java
:70)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:139)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
        at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(Extensions
Filter.java:147)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:214)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.StandardContextValve.invokeInternal(Standard
ContextValve.java:198)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:152)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:137)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:118)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:102)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)

        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:16
0)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:799)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:705)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:577)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:684)
        at java.lang.Thread.run(Thread.java:595)