KafkaListenerEndpointRegistry.stop(Runnable) does not call callback when there are no containers to stop

[wilkinsona]

Boot's tests for its Kafka auto-configuration are taking 30 seconds each to run as we have a context with a KafkaListenerEndpointRegistry that has no MessageListenerContainers. This causes it to fail to call the callback that's passed into stop(Runnable) so we have to wait for Framework's 30 second timeout to pop.

[artembilan]

Good catch, Andy!

Will fix soon...

[artembilan]

Do you need the fix until Spring Boot 1.5.x ?

[wilkinsona]

Boot 1.5 doesn't appear to be affected. For example, this test takes less than 1 second. That may be due to the tests being different in 1.5, I'm not sure.

[artembilan]

Yeah... I think so. We will back-port any way until the version which is pulled by Initializr (seems for me 1.3.x), because we haven't committed into 1.1.x for a while already...

[garyrussell]

Yeah I found and fixed this in my experimental reactive @KafkaListener because in that environment, the MLC list was empty.

https://github.com/spring-projects/spring-kafka/pull/1123/files#diff-f23a91d9c56afd55946555b6ec1a150fR331