RFR: JDK-8021977 -- Open File Using Java.IO May Throw IOException On Windows

[Dan Xu]

Hi All,

Please review a simple bug fix for JDK8021977. For the backward 
compatibility, I have to remove the code that might throw out 
IOExceptionin the native side. The issue has never been reported.But it 
exists in a possible code path. And it is not easy to write a testcase 
for this obvious but corner issue. I am relying on the existing IO 
testcases for testing. Thanks!

Webrev: http://cr.openjdk.java.net/~dxu/8021977/webrev.00/
Bug: http://bugs.sun.com/view_bug.do?bug_id=8021977

-Dan