RFR: 7455: Add support for jolokia JMX service connection [v21]

[Martin Skarsaune]

> Setting back for review. The azure problem requires a fix in Jolokia.
> 
> Make use of support for JMX service connection in jolokia 1.7.0 and later to connect to JVMs over this protocol.

Martin Skarsaune has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  JMC-7455: Create a test plugin for kubernetes

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Changes:
  - all: https://git.openjdk.org/jmc/pull/332/files
  - new: https://git.openjdk.org/jmc/pull/332/files/43d21621..f523ab38

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmc&pr=332&range=20
 - incr: https://webrevs.openjdk.org/?repo=jmc&pr=332&range=19-20

  Stats: 48 lines in 7 files changed: 2 ins; 40 del; 6 mod
  Patch: https://git.openjdk.org/jmc/pull/332.diff
  Fetch: git fetch https://git.openjdk.org/jmc pull/332/head:pull/332

PR: https://git.openjdk.org/jmc/pull/332