[AMQ-5870] Lazy create if MQTTProtocolConverter in the WebSocket transport needs to be thread safe

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.10.2, 5.11.1
• Fix Version/s: 5.12.0
• Component/s: MQTT, Transport
• Assignee: Timothy A. Bish
• Reporter: Timothy A. Bish
• Created: 30/Jun/15 21:14
• Updated: 30/Jun/15 21:17
• Resolved: 30/Jun/15 21:17

Description

The MQTT WebSocket class creates its MQTTProtocolConverter lazily which can lead to a race as the method that does this is no thread safe and the race between connection create and the send of the BrokerInfo can lead two instances getting created and a stalled connect attempt.