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https://issues.apache.org/jira/browse/DIRMINA-392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Trustin Lee closed DIRMINA-392.
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    Resolution: Fixed
      Assignee: Trustin Lee

Done.

> Change the default Map implementation of session attributes to synchronized 
> HashMap for less memory consumption
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: DIRMINA-392
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-392
>             Project: MINA
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 1.1.0
>            Reporter: Trustin Lee
>            Assignee: Trustin Lee
>            Priority: Minor
>             Fix For: 1.1.1
>
>
> In MINA 1.1.0, we used ConcurrentHashMap to store session attributes.  
> ConcurrentHashMap is known to consume much more memory than HashMap, so users 
> who have upgraded from 1.0.x are suffering from OOM.  Let's revert back to 
> synchronized HashMap.

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