Files.copy() under Linux at least will remove the existing destination even if the source cannot be read...

[Francis Galiegue]

Not sure if this is wanted, but...

$ touch a b
$ ls -l ?
-rw-rw-r-- 1 fge fge 0 Feb 11 21:55 a
-rw-rw-r-- 1 fge fge 0 Feb 11 21:55 b
$ chmod 0 a
$ cp a b
cp: cannot open ‘a’ for reading: Permission denied
$ ls -l ?
---------- 1 fge fge 0 Feb 11 21:55 a
-rw-rw-r-- 1 fge fge 0 Feb 11 21:55 b
$

BUT...

If I have Paths to a and b and do:

Files.copy(a, b, StandardCopyOption.REPLACE_EXISTING);

then b is deleted even though you cannot even copy the contents from a
in the first place!

Honestly, I'd have expected it to behave like "cp" here...

-- 
Francis Galiegue, fgaliegue at gmail.com, https://github.com/fge
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