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https://issues.apache.org/jira/browse/AMQNET-401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Markus Karolus updated AMQNET-401:
----------------------------------

    Description: 
It's the same problem which is descibed in,
https://issues.apache.org/jira/browse/AMQNET-339
in the current version (1.5.6) the real problem is not fixed, so I created this 
new issue.

Today we had an crash on one of our enviromental boxes:
Directly after a failover we got the following message from the 
InactivityMonitor "InactivityMonitor[x]: Timer Task didn't shutdown properly."
Afterwards the whole process shuts down after an UnhandledException handling. 
In the WriteCheck method a NullReferenceException was thrown.

It seems that during the StopMonitorThreads the timer connectionCheckTimer 
couldn't stop correctly and ansyncTasks exists. Directly after that the 
asyncTasks will be set to null -> In the currenr running WriteCheck a 
NullReferenceException occures. 

(This problem was already commented in AMQNET-339 as last comment from Matthew 
Good)


  was:
It's the same problem which is descibed in,
https://issues.apache.org/jira/browse/AMQNET-339
in the current version (1.5.6) the real problem is not fixed, so I created this 
new issue.

Today we had an crash on one of our enviromental boxes:
Directly after a failover we got the following message from the 
InactivityMonitor "InactivityMonitor[{0}]: Timer Task didn't shutdown properly."
Afterwards the whole process shuts down after an UnhandledException handling. 
In the WriteCheck method a NullReferenceException was thrown.

It seems that during the StopMonitorThreads the timer connectionCheckTimer 
couldn't stop correctly and ansyncTasks exists. Directly after that the 
asyncTasks will be set to null -> In the currenr running WriteCheck a 
NullReferenceException occures. 

(This problem was already commented in AMQNET-339 as last comment from Matthew 
Good)


    
> NullReferenceException from Apache.NMS.ActiveMQ.Transport.InactivityMonitor 
> ----------------------------------------------------------------------------
>
>                 Key: AMQNET-401
>                 URL: https://issues.apache.org/jira/browse/AMQNET-401
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>          Components: NMS
>    Affects Versions: 1.5.6
>         Environment: Windows Server 2008 R2, .Net 4.0
>            Reporter: Markus Karolus
>            Assignee: Jim Gomes
>            Priority: Critical
>
> It's the same problem which is descibed in,
> https://issues.apache.org/jira/browse/AMQNET-339
> in the current version (1.5.6) the real problem is not fixed, so I created 
> this new issue.
> Today we had an crash on one of our enviromental boxes:
> Directly after a failover we got the following message from the 
> InactivityMonitor "InactivityMonitor[x]: Timer Task didn't shutdown properly."
> Afterwards the whole process shuts down after an UnhandledException handling. 
> In the WriteCheck method a NullReferenceException was thrown.
> It seems that during the StopMonitorThreads the timer connectionCheckTimer 
> couldn't stop correctly and ansyncTasks exists. Directly after that the 
> asyncTasks will be set to null -> In the currenr running WriteCheck a 
> NullReferenceException occures. 
> (This problem was already commented in AMQNET-339 as last comment from 
> Matthew Good)

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