[jboss-user] [JBoss Seam] - Problem with Seam2.0.Beta1 & a4j:poll

[xinhua]

hi,
i have a a4j:poll tag on my page which has a small time interval value. (smaller than session timeout).  It runs perfectly in a tab. 

But if i logout from another tab. (close my session). In the first tab i got immediately a very BORING alert dialog : 
View state could't be restated. reload page?
and errors

  | 16:32:08,058 ERROR [ExceptionFilter] exception root cause
  | java.lang.IllegalArgumentException: Stack must not be null
  |         at org.jboss.seam.core.ConversationEntry.<init>(ConversationEntry.java:39)
  |         at org.jboss.seam.core.ConversationEntries.createConversationEntry(ConversationEntries.java:53)
  |         at org.jboss.seam.core.Manager.createConversationEntry(Manager.java:510)
  |         at org.jboss.seam.core.Manager.beforeRedirect(Manager.java:651)
  |         at org.jboss.seam.faces.FacesManager.beforeRedirect(FacesManager.java:63)
  |         at org.jboss.seam.faces.FacesManager.appendConversationIdFromRedirectFilter(FacesManager.java:222)
  |         at org.jboss.seam.web.RedirectFilter$1.sendRedirect(RedirectFilter.java:65)
  |         at com.sun.faces.context.ExternalContextImpl.redirect(ExternalContextImpl.java:419)
  |         at org.ajax4jsf.framework.ajax.AjaxViewHandler.restoreView(AjaxViewHandler.java:180)
  |         at org.jboss.seam.jsf.SeamViewHandler.restoreView(SeamViewHandler.java:93)
  |         at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:316)
  |         at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:316)
  | 

but when i use SEAM 1.3.0Alpha , page was redirected to login page smoothly without such BORING alert and exception..... 

how can i suppress this stupid dialog? Please help me :...(

many thanks !


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