RFR: 8372023: Javac JMH failures [v3]

[Vicente Romero]

> There are two issues here, change for [1] implied that some code that was acceptable before this change would be rejected by the compiler. This had provoked an that some JMH tests started failing. This can be fixed by compiling those cases with `-source 25`. Also while taking a look at this issue I realized that the fix for [1] had a bug which it is also being fixed here.
> 
> TIA
> 
> [1] https://bugs.openjdk.org/browse/JDK-8369517

Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:

  changes to pom

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28400/files
  - new: https://git.openjdk.org/jdk/pull/28400/files/22bc2561..5a47f0b7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28400&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28400&range=01-02

  Stats: 6 lines in 1 file changed: 6 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28400.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28400/head:pull/28400

PR: https://git.openjdk.org/jdk/pull/28400