Review request for 100020 (sunbug=6819886)

[Alan Bateman]

Bug 100020 (https://bugs.openjdk.java.net/show_bug.cgi?id=100020) is a 
fix from Andreas Frischknecht. In summary File#lastModified, on Windows, 
uses GetFileTime to get the timestamp but doesn't check the result. This 
bites when accessing a remote file at just around the time that the file 
is deleted. Good sleuthing on the part of Andreas! As it only duplicates 
when accessing a file over SMB we don't propose to include a regression 
test.

The webrev is here:
  http://cr.openjdk.java.net/~alanb/6819689/webrev.00/

Thanks,
Alan.