java.lang.IllegalStateException: Connection pool shut down exception from spring-integration-aws library

Question

We are using spring-integration-aws-2.0.0 for connecting to kinesis to listen to stream. While stopping the application, always getting the following exception.

a.i.k.KinesisMessageDrivenChannelAdapter : Got an exception java.lang.IllegalStateException: Connection pool shut down during [ShardConsumer{shardOffset=KinesisShardOffset{iteratorType=TRIM_HORIZON, sequenceNumber='null', timestamp=null, stream='developer-entitlement-command-stream-local', shard='shardId-000000000000', reset=false}, state=CONSUME}] task invocation.
Process will be retried on the next iteration.

though it has probably not caused any data loss yet. Has anyone got this error?

Answer 1

This looks like a simple one but it is annoying.

• When stopping the application make sure that the connections are closed and they are returned to the pool.
• Any reference or a process should not be running in the background when the application is being closed.

My issue got fixed by the second option above.

Hope this helps :)