[seam-issues] [JBoss JIRA] (JBSEAM-5143) Random IllegalArgumentException: Stack must not be null

[Robert Becker (JIRA)]

    [ https://issues.jboss.org/browse/JBSEAM-5143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13024798#comment-13024798 ] 

Robert Becker commented on JBSEAM-5143:
---------------------------------------

Sorry, these are all assumptions and perhaps I am completely on the wrong path here.

One thing for sure is: The stack trace implies that {{Manager.getCurrentConversationEntry()}} returns null, because {{createConversationEntry}} is called in {{beforeRedirect}}: 

{code}
public ConversationEntry getCurrentConversationEntry() 
   {
      if (currentConversationEntry==null)
      {
         currentConversationEntry = ConversationEntries.instance().getConversationEntry( getCurrentConversationId() );
      }
      return currentConversationEntry;
   }
...

   /**
    * Temporarily promote a temporary conversation to
    * a long running conversation for the duration of
    * a browser redirect. After the redirect, the 
    * conversation will be demoted back to a temporary
    * conversation.
    */
   public void beforeRedirect()
   {
      //DONT BREAK, icefaces uses this
      if (!destroyBeforeRedirect)
      {
         ConversationEntry ce = getCurrentConversationEntry();
         if (ce==null)
         {
            ce = createConversationEntry();
         }
         //ups, we don't really want to destroy it on this request after all!
         ce.setRemoveAfterRedirect( !isLongRunningConversation() );
         setLongRunningConversation(true);
      }
   }
{code}

> Random IllegalArgumentException: Stack must not be null
> -------------------------------------------------------
>
>                 Key: JBSEAM-5143
>                 URL: https://issues.jboss.org/browse/JBSEAM-5143
>             Project: Seam 2
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.3.1.Final
>            Reporter: Robert Becker
>
> Since upgrading to Seam 2.3 with Mojarra 2.1.29 on glassfish v3 from Seam 2.2.2, I get random IllegalArgumentExceptions with the message "Stack must not be null". The application worked fine for several years until now.
> The full stack trace is listed here: http://pastebin.com/RjLndvnE
> The exception randomly happens (in about 1 of 500 requests) when navigating between pages, submitting forms, switching (RichFaces) tabs and so on.
> I believe restarting glassfish and/or enabling client side state saving reduces the frequency of the issue whereas it seems to happen more often after multiple successive redeployments during development.  Sadly, due to several dependencies this is already in production but happens far less often there, but it still happens daily according to the server logs.
> I have also posted this on stackoverflow (http://stackoverflow.com/questions/27107870/seam-2-3-illegalargumentexception-stack-must-not-be-null) but have not received any answers yet.
> Besides Seam 2.3, the following libraries are used:
> - Mojarra 2.1.29
> - RF 4.5 (exception also occurred with 4.3.x)
> - Omnifaces 1.10RC1 (will upgrade to 2.0)
> - Primefaces 5.1



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