Had a ConcurrentModificationException get thrown during startup today of a JBoss AS 5.1 server. Any idea on which project a jira issue should opened with to handle this?

14:12:33,591 ERROR [STDERR] Exception in thread "AOPListner"
14:12:33,591 ERROR [STDERR] java.util.ConcurrentModificationException
14:12:33,592 ERROR [STDERR] at java.util.WeakHashMap$HashIterator.nextEntry(WeakHashMap.java:762)
14:12:33,592 ERROR [STDERR] at java.util.WeakHashMap$KeyIterator.next(WeakHashMap.java:795)
14:12:33,592 ERROR [STDERR] at org.jboss.aop.AspectManager.getAdvisors(AspectManager.java:537)
14:12:33,592 ERROR [STDERR] at org.jboss.console.plugins.AOPLister$RefreshPoller.run(AOPLister.java:891)