Lots of "DefaultMessageListenerContainerThreads"

I am using Active MQ and the DefaultMessageListenerContainer in Order to access the MQ.

When debugging my Application I see lots of DefaultMessageListenerContainer Threads being created and closed. Lets say 5 per Second. Why keeps this happening ? Is this normal behavior ?

best regards

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Is this normal behavior ?

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That depends on your configuration. If you haven't specified a taskexecutor then yes it is normal behavior as the SimpleAsyncTaskExecutor is used which creates threads when it needs them. If you want to reuse threads use a TaskExecutor which uses a thread pool. If you have specified one and you see this happen then it depends on your taskexecutor and its configuration (depending on poolsize, thread idle times etc.).