Description
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)