[esb-issues] [JBoss JIRA] Assigned: (JBESB-1907) Race condition when creating stateful working memory

[Tom Fennelly (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBESB-1907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tom Fennelly reassigned JBESB-1907:
-----------------------------------

    Assignee: Tom Fennelly


> Race condition when creating stateful working memory
> ----------------------------------------------------
>
>                 Key: JBESB-1907
>                 URL: https://jira.jboss.org/jira/browse/JBESB-1907
>             Project: JBoss ESB
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Content Based Routing
>    Affects Versions: 4.4
>            Reporter: Jiri Pechanec
>            Assignee: Tom Fennelly
>            Priority: Critical
>             Fix For: 4.4 CP1
>
>
> If more than one thread is used the following code is buggy
>         private StatefulSession getStatefulSession( final RuleBase ruleBase )
>         {
>                 final StatefulSession[] statefulSessions = ruleBase.getStatefulSessions();
>                 boolean existingSession = statefulSessions != null && statefulSessions.length > 0;
>                 return existingSession ? statefulSessions[0] : ruleBase.newStatefulSession();
>         }
> It can lead into initiation and use of two working memories for the first messages coming.
> The similar problem can occur when the rule bases are created. The two rule bases and thus two working memories can be created.

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