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

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.