hg: jdk/jdk: 8160406: Collection.toArray() spec should be explicit about returning precisely an Object[]

[stuart.marks at oracle.com]

Changeset: 81b5e3f70d98
Author:    smarks
Date:      2017-11-30 14:49 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/81b5e3f70d98

8160406: Collection.toArray() spec should be explicit about returning precisely an Object[]
Reviewed-by: psandoz, martin, redestad

! src/java.base/share/classes/java/util/Collection.java