RFR [XS] : 8205416 : windows: fix checking of CloseHandle return code in Java_java_io_FileCleanable_cleanupClose0

[Baesken, Matthias]

Please review this small fix for a return code handling of windows function CloseHandle .

MSDN documents  CloseHandle here :   https://msdn.microsoft.com/de-de/library/windows/desktop/ms724211(v=vs.85).aspx
....
   Return value
   If the function succeeds, the return value is nonzero.
   If the function fails, the return value is zero. To get extended error information, call GetLastError<https://msdn.microsoft.com/de-de/library/windows/desktop/ms679360(v=vs.85).aspx>.


However  until this patch,  Java_java_io_FileCleanable_cleanupClose0
Checked for return code   -1  of  CloseHandle   in error cases .




Bug:

https://bugs.openjdk.java.net/browse/JDK-8205416


Webrev :

http://cr.openjdk.java.net/~mbaesken/webrevs/8205416/



Thanks, Matthias