[jbossts-issues] [JBoss JIRA] (JBTM-1840) Incorrect handling of multi-threaded access to JCA connections

Tom Jenkinson (JIRA) jira-events at lists.jboss.org
Mon Jul 15 08:18:26 EDT 2013

     [ https://issues.jboss.org/browse/JBTM-1840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tom Jenkinson resolved JBTM-1840.

    Resolution: Rejected

Hi Eytan,

May I ask you to either:
1. Open a support ticket for this if you have a support contract, or 
2. If you are a community user, please open a discussion on our forums but ensure that you are relating this to the community version of the software. In this instance it would be to replicate on WildFly 8.0.0.Alpha2.

Many thanks,
> Incorrect handling of multi-threaded access to JCA connections 
> ---------------------------------------------------------------
>                 Key: JBTM-1840
>                 URL: https://issues.jboss.org/browse/JBTM-1840
>             Project: JBoss Transaction Manager
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: JCA
>    Affects Versions: 6.0.0.Final
>         Environment: Red Hat Linux, Jboss EAP 6.0
>            Reporter: Eytan David
>            Assignee: Tom Jenkinson
>         Attachments: JCA_Deadlock.txt
> The issue JBPAPP-5596 which according to the documentation should have been resolved in Jboss EAP 5.1.1, still occurs in EAP 6.0
> The case describes a situation in which a long transaction (in a service handled by JTA) is set to be rolled back, but gets into a dead lock with the reaper thread.
> Deadlock as described in the stack trace:
> Found one Java-level deadlock:
> =============================
> "Thread-20":
>   waiting for ownable synchronizer 0xb22a2e58, (a java.util.concurrent.locks.ReentrantLock$NonfairSync),
>   which is held by "http-"
> "http-":
>   waiting to lock monitor 0x4e200ef4 (object 0xaa937ab0, a com.arjuna.ats.internal.jta.transaction.arjunacore.AtomicAction),
>   which is held by "Thread-20"

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