RFR 9: 8165641 : Deprecate Object.finalize

[Roger Riggs]

The webrev for deprecating finalize has been updated:
  - to improve the advice existing JDK subclasses overriding finalize 
provides in @deprecated javadoc,
  - to expand Object.finalize() javadoc to reinforce the correct use of 
super.finalize() by subclasses,
  - and to remove redundant @SuppressWarnings annotations.

Please review and comment.

Webrev:
http://cr.openjdk.java.net/~rriggs/webrev-finalize-deprecate-8165641/

Issue:
    https://bugs.openjdk.java.net/browse/JDK-8165641

Thanks, Roger