hg: jdk7u/jdk7u-dev/jdk: 7123229: (coll) EnumMap.containsValue(null) returns true

[neil.richards at ngmr.net]

Changeset: 9adc69925256
Author:    ngmr
Date:      2012-01-10 00:07 +0000
URL:       http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/9adc69925256

7123229: (coll) EnumMap.containsValue(null) returns true
Summary: java.util.EnumMap.NULL equals() must only be true for itself
Reviewed-by: alanb, mduigou

! src/share/classes/java/util/EnumMap.java
+ test/java/util/EnumMap/UniqueNullValue.java