git: openjdk/jdk8u-dev: 8201793: (ref) Reference object should not support cloning

[Poonam Bajaj]

Changeset: 3a5b2cdc
Author:    Poonam Bajaj <poonam at openjdk.org>
Date:      2022-08-22 19:53:40 +0000
URL:       https://git.openjdk.org/jdk8u-dev/commit/3a5b2cdc101f501fb7681d6c1ce20f68db08f004

8201793: (ref) Reference object should not support cloning

Reviewed-by: mchung, iris, andrew
Backport-of: 58ec25de2f383144417eb000efacecb78b30395c

! jdk/src/share/classes/java/lang/ref/Reference.java
+ jdk/test/java/lang/ref/ReferenceClone.java