[ http://issues.apache.org/jira/browse/JS2-619?page=all ]
David Sean Taylor reassigned JS2-619:
-------------------------------------
Assignee: David Sean Taylor
> Non-thread safe code in PortalSiteRequestContextImpl.java
> ---------------------------------------------------------
>
> Key: JS2-619
> URL: http://issues.apache.org/jira/browse/JS2-619
> Project: Jetspeed 2
> Issue Type: Bug
> Components: Components Core
> Affects Versions: 2.1-dev
> Environment: Any environment.
> Reporter: Woonsan Ko
> Assigned To: David Sean Taylor
> Priority: Minor
> Attachments: getmenu-diff.txt, getmenu-diff2.txt
>
>
> Every header.vm calls $site.getMenu(...) to retreive menus for a folder.
> And the class, named
> 'org.apache.jetspeed.portalsite.impl.PortalSiteRequestContextImpl', manages a
> set and a map to store and query portlet definition names and menus.
> However, because those are instantiated as a HashSet and as a HashMap, JS2
> can throw ConcurrentModificationException when portlet definitions and menus
> are to be cached.
> This exception can be observed in the following case:
> - For some reason, user can request twice for the same folder.
> - For some reason, a developer can design the pages to call header.vm
> simultaneously.
> (Actually these situations are not usual and it may not occur after first
> visit for a folder, but it can occur.)
> Therefore, those are to be synchronized.
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