Handle RejectedExecutionException 
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                 Key: AMQ-3272
                 URL: https://issues.apache.org/jira/browse/AMQ-3272
             Project: ActiveMQ
          Issue Type: Improvement
    Affects Versions: 5.5.0
            Reporter: Dejan Bosanac
            Assignee: Dejan Bosanac
             Fix For: 5.6.0


Under heavy load, the async task executor in kahadb can throw 
RejectedExecutionException meaning it can't accept more tasks.

Thread pool executor has RejectedExecutionHandler that deals with these 
situations and by default it aborts the task and throws the exception. I think 
it's much better to use ThreadPoolExecutor.CallerRunsPolicy which will try to 
execute the task in the current thread and thus sync the execution.

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