RFR: 7769: Cleanup pom and project files for JMC core [v3]

Wed Apr 27 20:17:34 UTC 2022

> There is a lot of redundancy, whitespace errors, inconsistencies, obsolete stuff, errors, outdated plugin versions etc. in JMC core pom and project files.
> 
> org.openjdk.jmc.flightrecorder.writer.test and org.openjdk.jmc.jdp.test have been refactored in terms of layout like the other test projects.

Christoph Langer has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:

 - Update more copyrights
 - Merge branch 'master' into better-test-structure
 - Update some more copyrights
 - Cleanup pom and project files for JMC core

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Changes: https://git.openjdk.java.net/jmc/pull/398/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jmc&pr=398&range=02
  Stats: 701 lines in 73 files changed: 142 ins; 173 del; 386 mod
  Patch: https://git.openjdk.java.net/jmc/pull/398.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/398/head:pull/398

PR: https://git.openjdk.java.net/jmc/pull/398