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https://issues.apache.org/jira/browse/IO-240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niall Pemberton resolved IO-240.
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Assignee: Niall Pemberton
Fix Version/s: 2.0
Resolution: Fixed
Fixed: http://svn.apache.org/viewvc?view=revision&revision=982437
> FileFilterUtils can create cvsFilter and svnFilter more than once
> -----------------------------------------------------------------
>
> Key: IO-240
> URL: https://issues.apache.org/jira/browse/IO-240
> Project: Commons IO
> Issue Type: Bug
> Reporter: Sebb
> Assignee: Niall Pemberton
> Priority: Minor
> Fix For: 2.0
>
>
> FileFilterUtils lazily creates the static fields cvsFilter and svnFilter;
> however access to the fields is not synchronized and the fields are not
> volatile.
> One thread can create the filter, but the updated value won't necessarily be
> seen by any/all other threads.
> This means that the fields can be created multiple times.
> Possible solutions: make the fields volatile, or use the singleton IODH
> idiom. The latter uses a bit more code, but is probably marginally cheaper if
> the field is used a lot.
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