[infinispan-issues] [JBoss JIRA] (ISPN-1914) Add hints for when File.listFiles() returns null

[Galder Zamarreño (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-1914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Galder Zamarreño updated ISPN-1914:
-----------------------------------

              Status: Pull Request Sent  (was: Open)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/1007

    
> Add hints for when File.listFiles() returns null
> ------------------------------------------------
>
>                 Key: ISPN-1914
>                 URL: https://issues.jboss.org/browse/ISPN-1914
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Loaders and Stores
>    Affects Versions: 5.1.2.FINAL
>            Reporter: Galder Zamarreño
>            Assignee: Galder Zamarreño
>             Fix For: 5.1.3.CR1, 5.1.3.FINAL
>
>
> Under some circumstances, File.listFiles() can return null as shown by AS7-3808:
> {code}
> @return  An array of abstract pathnames denoting the files and
>          directories in the directory denoted by this abstract
>          pathname.  The array will be empty if the directory is
>          empty.  Returns <code>null</code> if this abstract pathname
>          does not denote a directory, or if an I/O error occurs.
> {code}
> In order to get more information, if listFiles() returns null, add some checks to see if File.exists() and if File.isDirectory(). This might give us more of a clue of what happened. Also, although not likely, it might be worth to check permissions via File.canRead() and File.canWrite() too.

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