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From "Leonardo Uribe (Resolved) (JIRA)" <...@myfaces.apache.org>
Subject [jira] [Resolved] (MYFACES-3442) Infinite loop when calling ApplicationImpl._handleListenerForAnnotations under heavy load
Date Wed, 11 Jan 2012 00:18:39 GMT

     [ https://issues.apache.org/jira/browse/MYFACES-3442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Leonardo Uribe resolved MYFACES-3442.
-------------------------------------

       Resolution: Fixed
    Fix Version/s: 2.1.6
                   2.0.12
         Assignee: Leonardo Uribe

I have changed the affected locations with ConcurrentHashMap and CopyOnWriteArrayList. Thanks
to Michael Dietrich for the suggestion.
                
> Infinite loop when calling ApplicationImpl._handleListenerForAnnotations under heavy
load
> -----------------------------------------------------------------------------------------
>
>                 Key: MYFACES-3442
>                 URL: https://issues.apache.org/jira/browse/MYFACES-3442
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.1.3
>            Reporter: Michael Dietrich
>            Assignee: Leonardo Uribe
>             Fix For: 2.0.12, 2.1.6
>
>
> Hi,
> when doing Load Tests, we  recognize that we sometimes got stuck in an infinite loop,
when calling the _handleListenerForAnnotations method of the ApplicationImpl class. According
to our analysis, this is related to the _classToListenerForMap attribute that is is defined
as plain HashMap, so no synchronisation takes place when it is accessed from several threads.
Our suggestion would be, to define it as a ConcurrentHashMap instead, because according to
our experience, such kind of infinite loops due to concurrency don't occur with ConcurrentHashMaps.
> Kind regards,
> Michael

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