RFR: 8366: Jolokia - Display warning when enabling Jolokia discovery about only using the discovery feature in a trusted environment.

[Martin Skarsaune]

8366: Jolokia - Display warning when enabling Jolokia discovery about only using the discovery feature in a trusted environment.

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Commit messages:
 - JMC-8366: Display warning to only use Jolokia discovery in a trusted environment

Changes: https://git.openjdk.org/jmc/pull/631/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=631&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8366
  Stats: 14 lines in 3 files changed: 10 ins; 2 del; 2 mod
  Patch: https://git.openjdk.org/jmc/pull/631.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/631/head:pull/631

PR: https://git.openjdk.org/jmc/pull/631