Review request for JDK-8163266 : Doc for ValidationEvent#getSeverity()

[Abhijit Roy]

Hi all,

Please review a fix for Bug  - 
https://bugs.openjdk.java.net/browse/JDK-8163266
Bug - Doc for ValidationEvent#getSeverity() should say it returns a 
constant from ValidationEvent instead of ValidationError
Webrev - http://cr.openjdk.java.net/~ntv/ababroy/8163266/webrev.00/ 
<http://cr.openjdk.java.net/%7Entv/ababroy/8163266/webrev.00/>
I have just rectified and modified those errors. And moving forward it 
for review.

Regards,
Abhijit