hg: jdk9/dev/jdk: 8138696: java.lang.ref.Cleaner - an easy to use alternative to finalization

[roger.riggs at oracle.com]

Changeset: 7c8488605485
Author:    rriggs
Date:      2015-12-21 11:34 -0500
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/7c8488605485

8138696: java.lang.ref.Cleaner - an easy to use alternative to finalization
Reviewed-by: mchung, mr, chegar, plevart, kbarrett, dholmes

+ src/java.base/share/classes/java/lang/ref/Cleaner.java
! src/java.base/share/classes/java/lang/ref/package-info.java
+ src/java.base/share/classes/jdk/internal/misc/CleanerImpl.java
+ test/java/lang/ref/CleanerTest.java