Request for approval for CR 7086586 - Inference producing null type argument

[Dmeetry Degrave]

Request for jdk7u4 fix.

7086586: Inference producing null type argument
http://bugs.sun.com/view_bug.do?bug_id=7086586
http://bugs.sun.com/view_bug.do?bug_id=2213800

fix differs from jdk8.

webrev: http://cr.openjdk.java.net/~dmeetry/7086586/webrev.01/

Reviewed by Maurizio Cimadamore and Rémi Forax.

thanks,
dmeetry