RFR: 8346985: Convert test/jdk/com/sun/jdi/ClassUnloadEventTest.java to Class-File API [v2]

[Adam Sotona]

> This patch converts the remaining test/jdk/com/sun/jdi/ClassUnloadEventTest.java from ASM to Class-File API.
> 
> Please review.
> 
> Thanks,
> Adam

Adam Sotona has updated the pull request incrementally with one additional commit since the last revision:

  updated copyright year

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22915/files
  - new: https://git.openjdk.org/jdk/pull/22915/files/bc0b9dfa..9e8471d8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22915&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22915&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22915.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22915/head:pull/22915

PR: https://git.openjdk.org/jdk/pull/22915