[AMQ-5127] MQTT Subscriber with QoS.EXACTLY_ONCE receives messages even after unsubscribing from topic

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.9.0
• Fix Version/s: 5.10.0
• Component/s: MQTT
• Labels: mqtt
• Patch Info: Patch Available
• Assignee: Unassigned
• Reporter: Netlancer
• Created: 30/Mar/14 04:59
• Updated: 23/Jun/14 16:39
• Resolved: 23/Jun/14 16:39

Description

How to reproduce:
1. client c1 ( clientid1) connects, subscribes to topic A with QoS.EXACTLY_ONCE , unsubscribes topic A and disconnects.

2. client c2 ( clientid2) publishes to topic A with QoS.EXACTLY_ONCE.

3. client c1 ( clientid1) connects back again.

Expectation : client c1 shouldn't receive any messages as it has already unsubscribed

Attached test method to reproduce this issue