[DIRMINA-1076] Leaking NioProcessors/NioSocketConnectors hanging in call to dispose

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.16
• Fix Version/s: 2.0.17
• Component/s: Core
• Assignee: Jonathan Valliere
• Reporter: Christoph John
• Created: 09/Feb/18 14:16
• Updated: 04/May/19 15:35
• Resolved: 03/Mar/18 19:48

Description

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?

Issue Links

• relates to: DIRMINA-1077 Threads hanging in dispose() on SSLHandshakeException
• links to: GitHub Pull Request #13
• links to: GitHub Pull Request #13