7904214: Warn instead of throwing exception on non-HotSpot JVMs

[varada1110]

This change allows JOL to run on non-HotSpot JVMs by printing a warning instead of throwing an IllegalStateException.

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Progress

• Change must not contain extraneous whitespace
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Issue

• CODETOOLS-7904214: Warn instead of throwing exception on non-HotSpot JVMs (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jol.git pull/72/head:pull/72
$ git checkout pull/72

Update a local copy of the PR:
$ git checkout pull/72
$ git pull https://git.openjdk.org/jol.git pull/72/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 72

View PR using the GUI difftool:
$ git pr show -t 72

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jol/pull/72.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back varadam! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[mlbridge]

Webrevs

• 00: Full (921c0ac9)