RFR: 8329138: Convert JFR FileForceEvent to static mirror event [v9]

[Tim Prinzing]

> Currently the JFR event FileForceEvent is generated by instrumenting the sun.nio.ch.FileChannelImpl class. This needs to be changed to use the newer mirror events with static methods.
> 
> Added the event at jdk.internal.event.FileForceEvent, and changed jdk.jfr.events.FileForceEvent to be a mirror event.
> 
> Updated FileChannelImpl to use the jdk internal event static methods, and removed the force() method from FileChannelImplInstrumentor.
> 
> Uses the existing tests.

Tim Prinzing has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 11 commits:

 - Merge branch 'refs/heads/master' into JDK-8329138
 - remove unecessary blank line
 - IntelliJ trying to help
 - undo fix being handled in JDK-8329330.
 - test file local to test
 - fix windows build issue
 - requested changes
 - Add support for AsynchronousFileChannel.force().
 - javadoc fixup
 - remove mirrors from JDKEvents
 - ... and 1 more: https://git.openjdk.org/jdk/compare/819f3d6f...743b92a6

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Changes: https://git.openjdk.org/jdk/pull/18542/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18542&range=08
  Stats: 279 lines in 12 files changed: 238 ins; 27 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/18542.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18542/head:pull/18542

PR: https://git.openjdk.org/jdk/pull/18542