[jira] Commented: (DIRMINA-737) StateMachine deadlock on StateContext synchronization

["Julien Vermillard (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DIRMINA-737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12747459#action_12747459 ] 

Julien Vermillard commented on DIRMINA-737:
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Niklas (Therning) any idea ? There is some strange deadlock managing code there, but it's looking inneficent.

> StateMachine deadlock on StateContext synchronization
> -----------------------------------------------------
>
>                 Key: DIRMINA-737
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-737
>             Project: MINA
>          Issue Type: Bug
>          Components: Statemachine
>    Affects Versions: 2.0.0-M6
>         Environment: Mac OSX 10.5.8
> JDK 1.5.0_19-137
>            Reporter: Rafael Marins
>         Attachments: deadlockDump.txt
>
>
> I've found a deadlock at StateMachine#handle(StateMachine.java:129)  and StateMachineProxyBuilder $MethodInvocationHandler.invoke(StateMachineProxyBuilder.java:253), when using two layered state machines in pipeline. It get into deadlock because both methods seems to be called concurrently.

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