[jira] Commented: (LUCENE-2533) FileSwitchDirectory should uniqueify the String file names returned by listAll

["Uwe Schindler (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-2533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12926481#action_12926481 ] 

Uwe Schindler commented on LUCENE-2533:
---------------------------------------

I'll take this one, its committing....

> FileSwitchDirectory should uniqueify the String file names returned by listAll
> ------------------------------------------------------------------------------
>
>                 Key: LUCENE-2533
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2533
>             Project: Lucene - Java
>          Issue Type: Bug
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 2.9.4, 3.0.3, 3.1, 4.0
>
>
> Right now we blindly concatenate what's returned from primary & secondary.
> But a legit use of FSD is pointing to the same underlying FSDir but w/ different impls for opening the inputs/outputs.
> I have simple patch that just uniqueifies using Set<String>.

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