FULL PRODUCT VERSION :


ADDITIONAL OS VERSION INFORMATION :
Windows 8.1
Windows Server 2012 R2

A DESCRIPTION OF THE PROBLEM :
System.getProperty( " os.name " ) returns  " Windows NT (unknown) "  on Windows 8.1 and Windows Server 2012 R2

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Following code should return valid OS name for Windows 8.1

public class HelloWorld {
     public static void main(String args[]) {
        System.out.println(System.getProperty( " os.name " ));
     }
}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Valid OS name
ACTUAL -
 " Windows NT (unknown) " 

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class HelloWorld {
     public static void main(String args[]) {
        System.out.println(System.getProperty( " os.name " ));
     }
}
---------- END SOURCE ----------