git: openjdk/jdk: 6323374: (coll) Optimize Collections.unmodifiable* and synchronized*

[Stuart Marks]

Changeset: dbef0ec9
Author:    Ian Graves <igraves at openjdk.org>
Committer: Stuart Marks <smarks at openjdk.org>
Date:      2021-03-05 03:20:44 +0000
URL:       https://git.openjdk.java.net/jdk/commit/dbef0ec9

6323374: (coll) Optimize Collections.unmodifiable* and synchronized*

Reviewed-by: redestad, smarks, darcy

! src/java.base/share/classes/java/util/Collections.java
+ test/jdk/java/util/Collections/WrappedUnmodifiableCollections.java