Emmanuel Lecharny commented on DIRMINA-1076:

The proposed patch makes a lot of sense. There is no reason for managing 
removed sessions when the service is being disposed anyway.

> Leaking NioProcessors/NioSocketConnectors hanging in call to dispose
> --------------------------------------------------------------------
>                 Key: DIRMINA-1076
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-1076
>             Project: MINA
>          Issue Type: Bug
>    Affects Versions: 2.0.16
>            Reporter: Christoph John
>            Priority: Major
>         Attachments: mina-dispose-hang.txt, mina-test-log.txt, 
> mina-test-patch.txt
> Follow-up to mailing list discussion.
> I was now able to reproduce the problem with a MINA test. Or let's say I did 
> the brute-force approach by re-running one test in an endless loop.
> I have attached a patch of AbstractIoServiceTest (against 
> [https://github.com/apache/mina/tree/2.0]) and a stack trace. After a few 
> loops the test is stuck. You can see a lot of threads hanging in dispose() 
> and the test is stuck when it tries to dispose the acceptor.
> What is a little strange is that the javadoc says that 
> connector.dispose(TRUE) should not be called from an IoFutureListener, but in 
> the test it is done anyway. However, changing the parameter to FALSE does not 
> help either.
>  Is there anything that can be done to prevent this hang?

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