@JmsListener concurrency property is ignored if DefaultJmsListenerContainerFactory#concurrency is set [SPR-16338]

[spring-projects-issues]

Cameron Mayfield opened SPR-16338 and commented

We are noticing that the concurrency property on a specific @JmsListener annotation is overwritten by the DefaultJmsListenerContainerFactory concurrency value which is set using the spring.jms.listener.concurrency property. This appears to occur in DefaultJmsListenerContainerFactory#initializeContainer.

We were hoping to override the concurrency for a specific @JmsListener while leaving the others on the default.

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Affects: 4.3.13

Referenced from: commits 0747cd6, 42dfa40

Backported to: 4.3.14

[spring-projects-issues]

Stéphane Nicoll commented

Good catch, this is due to initializeContainer that is applied after the settings of the endpoint have been applied. Flipping that with the setupListenerContainer call in createListenerContainer should be enough to fix the issue.

Ideally, we should have had a test to exercise this behaviour,