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From "Tobias Bocanegra (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (JCR-862) unsynchronized access on 'itemCache' map in ItemManager
Date Thu, 26 Apr 2007 16:54:15 GMT

     [ https://issues.apache.org/jira/browse/JCR-862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tobias Bocanegra reopened JCR-862:
----------------------------------


there are still some potential unsynchronized accesses:

- itemExists(Path) calls evictItem()
- itemExists(ItemId) calls evictItem()
- dispose() does a cache.clear()
- dump() accesses the cache as well

> unsynchronized access on 'itemCache' map in ItemManager 
> --------------------------------------------------------
>
>                 Key: JCR-862
>                 URL: https://issues.apache.org/jira/browse/JCR-862
>             Project: Jackrabbit
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.2.3
>            Reporter: Tobias Bocanegra
>         Assigned To: Stefan Guggisberg
>             Fix For: 1.4
>
>
> the access 'itemCache' map in ItemManager is mostly synchronized by not via the ItemStateListener
methods:
> [...]
>     public void stateCreated(ItemState created) {
>         ItemImpl item = retrieveItem(created.getId());
>         if (item != null) {
>             item.stateCreated(created);
>         }
>     }
> [...]
>     private ItemImpl retrieveItem(ItemId id) {
>         return (ItemImpl) itemCache.get(id);
>     }
> [...]
> this can result in a corruption of a map (eg subsequent accesses may result in a endless
loop).

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