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From "Ralph Goers (JIRA)" <>
Subject [jira] Resolved: (VFS-326) Multi-threading issues
Date Tue, 23 Nov 2010 08:01:18 GMT


Ralph Goers resolved VFS-326.

       Resolution: Fixed
    Fix Version/s: 2.0

DefaultFileMonitor and SoftRefFilesCache were modified to make the boolean variables volatile.
In addition, SoftRefFllesCache was modified to use a ConcurrentHashMap and locks instead of

> Multi-threading issues
> ----------------------
>                 Key: VFS-326
>                 URL:
>             Project: Commons VFS
>          Issue Type: Bug
>            Reporter: Sebb
>            Assignee: Sebb
>             Fix For: 2.0
> SoftRefFilesCache and DefaultFileMonitor use a boolean to communicate between threads,
but don't use synchronisation.
> There is no guarantee that the updated value of the boolean will be seen by the other
thread. Adding volatile would fix this.
> There are also various private instance fields that are not modified after construction.
> If these were made final, it would improve thread-safety because the fields would then
be published correctly across threads.

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