[ARTEMIS-289] Potential ConcurrentModificationException when closing connections

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.2.0
• Assignee: Justin Bertram
• Reporter: Justin Bertram
• Created: 29/Oct/15 18:40
• Updated: 03/Nov/16 20:40
• Resolved: 29/Oct/15 20:31

Description

org.apache.activemq.artemis.core.server.impl.QueueImpl#getConsumers returns the actual Set of consumers, but if another thread modifies this collection while the caller loops through the Set then a ConcurrentModificationException will be thrown. This is possible particularly in management operations that work on the Set of consumers like org.apache.activemq.artemis.api.core.management.ActiveMQServerControl#closeConsumerConnectionsForAddress.