8367910: Reduce warnings about unsupported classes in AOT cache creation

[iklam]

Currently AOT cache creation may print lots of warning (depending on the actions performed by the application's training run). Most of these warnings are harmless and are caused by JVM limitations; there's nothing that the user can do about them:

[1.096s][warning][aot] Skipping jdk/internal/event/Event: JFR event class
[1.096s][warning][aot] Skipping jdk/jfr/Event: JFR event class
[1.099s][warning][aot] Skipping jdk/proxy1/$Proxy14: Unsupported location
[1.100s][warning][aot] Skipping jdk/proxy1/$Proxy12: Unsupported location
[1.100s][warning][aot] Skipping jdk/proxy1/$Proxy11: Unsupported location

This PR moves most of these warnings to the "info" level. The only messages that are still logged in the "warning" levels are:

• class is in an error state
• class failed verification

These could indicate issues with the application so it's good to let the user know.

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8367910: Reduce warnings about unsupported classes in AOT cache creation (Enhancement - P4)

Reviewers

• David Holmes (@dholmes-ora - Reviewer)
• Vladimir Kozlov (@vnkozlov - Reviewer)
• Aleksey Shipilev (@shipilev - Reviewer)

Reviewing

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[bridgekeeper]

👋 Welcome back iklam! 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]

@iklam This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8367910: Reduce warnings about unsupported classes in AOT cache creation

Reviewed-by: dholmes, kvn, shade

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 42 new commits pushed to the master branch:

• 2b45113: 8359378: aarch64: crash when using -XX:+UseFPUForSpilling
• d1ea6ea: 8367103: RISC-V: store cpu features in a bitmap
• 26b5708: 8360882: Tests throw SkippedException when they should fail
• ... and 39 more: https://git.openjdk.org/jdk/compare/528f93f8cb9f1fb9c19f31ab80c8a546f47beed2...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (48c65879)

[dholmes-ora]

Seems reasonable.

Thanks

[vnkozlov]

Looks good

[iklam]

Thanks @dholmes-ora @vnkozlov @shipilev for the review
/integrate

[openjdk]

Going to push as commit 52e7778.
Since your change was applied there have been 52 commits pushed to the master branch:

• 3c9fd76: 8368514: TLS stateless session ticket decryption fails on some providers
• a48538d: 8367324: Avoid redundant parsing when formatting with DigitList
• 80cb0ea: 8367133: DTLS: fragmentation of Finished message results in handshake failure
• ... and 49 more: https://git.openjdk.org/jdk/compare/528f93f8cb9f1fb9c19f31ab80c8a546f47beed2...master

Your commit was automatically rebased without conflicts.

[openjdk]

@iklam Pushed as commit 52e7778.

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