[AMQ-1777] Access to ConnectionEventListeners in RA's ActiveMQManagedConnection is not synchronized

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 5.0.0, 5.1.0
• Fix Version/s: 5.2.0
• Component/s: JCA Container
• Patch Info: Patch Available
• Assignee: Robert Davies
• Reporter: Kai Hudalla
• Created: 06/Jun/08 13:28
• Updated: 11/Jun/08 23:14
• Resolved: 11/Jun/08 23:14

Description

When the RA's connection to the broker fails and the <i>ActiveMQManagedConnection.onException()</i> method is called, all the registered <i>ConnectionEventListener</i>s are notified.
At least in Glassfish, the registered listener then calls the <i>ActiveMQManagedConnection.removeConnectionEventListener()</i> to unregister itself. This causes a <i>java.util.ConcurrentModificationException</i> to be thrown since the <i>ConnectionEventListener</i> collection is modified while the <i>onException()</i> iterates over it.

Kai