[7u-dev] Request for approval : 7160242: (prefs) Preferences.remove(null) does not throw NPE [macosx]

[Kurchi Hazra]

This is a request for approval to backport the fix for 7160242 from 8 to 
7u-dev.

Bug:http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7160242
Webrev:http://cr.openjdk.java.net/~khazra/7160242/jdk7/webrev.00/

This had been reviewed by Alan Bateman, Rémi Forax and Chris Hegarty. [1]

This fix has been pushed into jdk8 [2].

Thanks,
Kurchi

[1]http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-April/009982.html
[2]http://hg.openjdk.java.net/jdk8/tl/jdk/rev/3e398b549cea