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https://issues.apache.org/jira/browse/TAPESTRY-2561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12628983#action_12628983
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Francois Armand commented on TAPESTRY-2561:
-------------------------------------------

We have done some load test on our application, and one time, we get the 
deadlock, so I will try to explain what we did.

* if I start the application, and use it a little (even if I don't go 
everywhere), everything is ok : on a load test, we were able to let the server 
run under the load of 4 computers, 25 jmeter threads by computer during several 
hours, without the deadlock.

* if I start the application and immediately launch the jmeter test with say 25 
threads, the application goes to the deadlock. 

I tried  to reproduce this bug in a demo application, but did not succeed. It 
seems that trivial application run just fine, even with a bunch of thread 
launch at once. 



> Rapidly refreshing a page, even the same page, can cause a deadlock related 
> to class loading
> --------------------------------------------------------------------------------------------
>
>                 Key: TAPESTRY-2561
>                 URL: https://issues.apache.org/jira/browse/TAPESTRY-2561
>             Project: Tapestry
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.0.14
>         Environment: Mac pro, OS Version:      Mac OS X 10.5.4 (9E17)
> Java HotSpot(TM) Client VM (1.5.0_13-119 mixed mode,
> sharing)
>            Reporter: Steven Woolley
>            Assignee: Howard M. Lewis Ship
>            Priority: Blocker
>             Fix For: 5.0.15
>
>         Attachments: full thread dump deadlock.txt
>
>
> It was triggered by (accidentally) double clicking a pagelink ;)
> Unfortunately, can't quite repeat it... at least not clicking with a mouse...

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