hg: jdk8/tl/jdk: 4858457: File.getCanonicalPath() throws IOException when invoked with "nul" (win)

[dan . xu]

Changeset: 5bb196aa183c
Author:    dxu
Date:      2013-08-15 12:36 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/5bb196aa183c

4858457: File.getCanonicalPath() throws IOException when invoked with "nul" 
(win)
Reviewed-by: alanb

! src/windows/native/java/io/canonicalize_md.c
! test/java/io/File/WinDeviceName.java