[jira] [Commented] (IO-263) FileSystemUtils.freeSpaceKb throws exception for Windows volumes with no visible files.

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

    [ https://issues.apache.org/jira/browse/IO-263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018067#comment-13018067 ] 

Sebb commented on IO-263:
-------------------------

Or, for more efficiency, could just use

bq. DIR /AH /-C x:\ 

as that only returns the hidden file names (and if that does not work, perhaps try DIR /A /-C) 

Note: this method becomes redundant on Java 1.6+, as the java.io.File class finally has getFreeSpace()/getUsableSpace() etc.

> FileSystemUtils.freeSpaceKb throws exception for Windows volumes with no visible files.
> ---------------------------------------------------------------------------------------
>
>                 Key: IO-263
>                 URL: https://issues.apache.org/jira/browse/IO-263
>             Project: Commons IO
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 2.0.1
>         Environment: Windows XP SP3
>            Reporter: Gil Adam
>
> Doing a FileSystemUtils.freeSpaceKb("D:/") where the drive (in this example d:\) is an empty drive (A drive with no non-hidden files on it yet) results in an exception being thrown.
>      "Command line returned OS error code '1' for command [cmd.exe, /C, dir /-c "D:\"]
> Perhaps it could do a "dir /a /-c" to work in more cases? (Since hidden file "System Volume Information" will usually be available)

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