[ARTEMIS-3636] LinkedListImpl$Iterator leak on mesage consume error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.19.0
• Fix Version/s: 2.19.1, 2.21.0
• Assignee: Justin Bertram
• Reporter: Fabio Nascimento Brandão
• Created: 11/Jan/22 20:30
• Updated: 20/Jan/22 14:02
• Resolved: 20/Jan/22 14:02

Description

There is a leak of org.apache.activemq.artemis.utils.collections.LinkedListIterator when a message is marked for rollback on consume.

https://github.com/apache/activemq-artemis/blob/1c9516db6aef8d853c7afd4fb01b7cb996dc23e0/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/client/impl/ClientConsumerImpl.java#L713

The iterator used at ClientConsumerImpl:713 is never closed causing the leak.

 

I wrote a "unit test" that simulates this condition. Start the test with Xmx256m and after some seconds the program terminates with "OutOfMemoryError".

Issue Links

• links to: GitHub Pull Request #3911