myfaces random binding issue

Hi,

 

I get a random error like 1 out of every 1000 calls to a jsf buttons action.  The jsf button code:

 

Yeah I figured something like that. ; It just happens randomnly and it seems to affect all users, if they log out and log back in it disappears.  I will look at my static variables and objects.

Thanks

 

On 9/23/07, simon < simon.kitchingchello.at">simon.kitchingchello.at> wrote:

Hmm..sounds like an inter-thread race condition to me. I would guess
there is a static variable somewhere that isn't being synchronized.
However that wouldn';t be very easy to track down...

On Fri, 2007-09-21 at 14:07 -0700, Jeff OTN wrote:
>; Hi,
>
&gt; I get a random error like 1 out of every 1000 calls to a jsf buttons
&gt; action.&nbsp; The jsf button code:
&gt;
> <h:commandButton id="certify_button" tabindex=&quot;3"; disabled=&quot;true&quot;
> action=&quot;#{plateForm.delegate.certify}&quot;
> value=&quot;#{messages['verify_button_certify']}" styleClass="defaultButton
> certifyRejectButton&quot; />
>
> I have logged numerous debug statements trying to trace the following
> error, yet I can not explain why it happens so randomly.&nbsp; Our user
> report that when it first happens other users will get the error and
> then it will stop occuring for hours:
>;
> 11:17:07,094 ERROR [[Faces Servlet]] Servlet.service() for servlet
&gt; Faces Servlet threw exception
> javax.faces.el.EvaluationException: Expression:
> #{plateForm.delegate.certify}
&gt; &nbsp;at org.apache.myfaces.el.MethodBindingImpl.invoke
> (MethodBindingImpl.java:164)
>; &nbsp;at
> org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java :62)
>  ;at javax.faces.component.UICommand.broadcast(UICommand.java:106)
>; &nbsp;at javax.faces.component.UIViewRoot._broadcastForPhase
&gt; (UIViewRoot.java:110)
>  at
&gt; javax.faces.component.UIViewRoot.processApplication (UIViewRoot.java:184)
&gt; &nbsp;at
> org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:271)
&gt; &nbsp;at org.apache.myfaces.lifecycle.LifecycleImpl.execute
>; (LifecycleImpl.java:102)
>&nbsp; at javax.faces.webapp.FacesServlet.service(FacesServlet.java:109)
&gt; &nbsp;at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
> &nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter
> (ApplicationFilterChain.java:173)
> ; at
&gt; com.transcore.lattice.measure.profiler.ProfilingFilter.doFilter(ProfilingFilter.java:60)
> ; at
&gt; org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java :202)
>  ;at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
>&nbsp; at
> com.transcore.lattice.measure.logger.LoggingFilter.doFilter (LoggingFilter.java:57)
&gt; &nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
> (ApplicationFilterChain.java:202)
> ; at
&gt; org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java :173)
>&nbsp; at
> com.transcore.lattice.security.LoginFilter.doFilter(LoginFilter.java:97)
>; &nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
> (ApplicationFilterChain.java:202)
>&nbsp; at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
>&nbsp; at
> com.transcore.lattice.security.ExternalLoginFilter.doFilter(ExternalLoginFilter.java :76)
>&nbsp; at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
> &nbsp;at
>; org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
>&nbsp; at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter
> (ReplyHeaderFilter.java:81)
>  ;at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
> &nbsp;at
&gt; org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java :173)
>  ;at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>; &nbsp;at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
&gt; &nbsp;at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke
> (CustomPrincipalValve.java:39)
&gt; &nbsp;at
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke (SecurityAssociationValve.java:159)
>  at
&gt; org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
>&nbsp; at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :126)
>&nbsp; at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> ; at org.apache.catalina.core.StandardEngineValve.invoke
&gt; (StandardEngineValve.java:107)
&gt; &nbsp;at
&gt; org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> &nbsp;at
>; org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
&gt; &nbsp;at org.apache.coyote.http11.Http11Protocol
&gt; $Http11ConnectionHandler.processConnection (Http11Protocol.java:744)
>&nbsp; at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
>  ;at
> org.apache.tomcat.util.net.MasterSlaveWorkerThread.run (MasterSlaveWorkerThread.java:112)
>&nbsp; at java.lang.Thread.run (Thread.java:595)
>; Caused by: java.lang.NullPointerException
&gt;
>
&gt;
>
>;
>