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https://issues.apache.org/jira/browse/JS2-1325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Sean Taylor resolved JS2-1325.
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    Resolution: Fixed

> Preferences Caching Performance Improvements
> --------------------------------------------
>
>                 Key: JS2-1325
>                 URL: https://issues.apache.org/jira/browse/JS2-1325
>             Project: Jetspeed 2
>          Issue Type: Improvement
>          Components: Portlet Entities and Preferences
>    Affects Versions: 2.3.0
>            Reporter: David Sean Taylor
>            Assignee: David Sean Taylor
>             Fix For: 2.3.0
>
>
> The Preferences Model uses a PUBLIC cache in the form of the Jetspeed cache 
> in order to store default preferences. (This works well except for the fact 
> that Ehcache does not support negative caching and therefore database calls 
> which have no results end up falling through the cache cycle.) The 
> Preferences Model however does not leverage PRIVATE caching (users session) 
> to store user specific preferences and therefore the preferences are pulled 
> back as required resulting in some of the large volume of requests
> Improvement:  preloading these preferences in the PRIVATE cache using a 
> single call when the user hits the page for the first time.



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