(fs) Files.isWritable method returns false when the path is writable (win)

FULL PRODUCT VERSION :
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
windows 7 64-bit
Microsoft Windows [Verze 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
able to reproduce this problem:
http://bugs.java.com/bugdatabase/view_bug.do?bug_id=7190897


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
http://bugs.java.com/bugdatabase/view_bug.do?bug_id=7190897

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Result of isWritable: true
Result of isWritable: true
ACTUAL -
Result of isWritable: false
Result of isWritable: false

REPRODUCIBILITY :
This bug can be reproduced always.

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http://bugs.java.com/bugdatabase/view_bug.do?bug_id=7190897
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