RFR: 8285690: CloneableReference subtest should not throw CloneNotSupportedException [v2]

[Kim Barrett]

> Please review this fix to test/jdk/java/lang/ref/ReferenceClone.java.  It was
> passing if CloneableReference::clone were to throw CloneNotSupportedException.
> That should be a failure.
> 
> Testing:
> Locally (linux-x64) verified test still passes.  Temporarily changed
> CloneableReference::clone to throw and verified the expected failure gets
> reported, unlike before.

Kim Barrett has updated the pull request incrementally with one additional commit since the last revision:

  update copyright, @bug list

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8418/files
  - new: https://git.openjdk.java.net/jdk/pull/8418/files/47043626..8f863628

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8418&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8418&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8418.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8418/head:pull/8418

PR: https://git.openjdk.java.net/jdk/pull/8418