Add test for build-time invokedynamic/constantdynamic bootstrap method registration API

[zakkak]

Summary

Adds BootstrapMethodTest, a new native image test that exercises the registerBuildTimeIndyIncludeList and registerBuildTimeCondyIncludeList APIs introduced in FeatureImpl.DuringSetupAccessImpl.

The test dynamically generates a class at build time (via the Java ClassFile API) containing invokedynamic and constantdynamic instructions backed by custom bootstrap methods. It then registers selected bootstrap methods for build-time resolution via the Feature API and verifies:

• Bootstrap methods registered via registerBuildTimeIndyIncludeList / registerBuildTimeCondyIncludeList are invoked at build time and their results are embedded in the image.
• Bootstrap methods not registered are deferred to run time, confirming the allowlist is correctly scoped.

Assisted-by: Claude Opus 4.6 noreply@anthropic.com

Related Issues

• Follow up to [GR-71149] Add API to control which bootstrap methods are allowed to be executed at build time #12683 that introduced the new API.

Testing

mx -p substratevm gate --tags native_unittests

and

mx -p substratevm native-unittest com.oracle.svm.test.BootstrapMethodTest --build-args --features=com.oracle.svm.test.BootstrapMethodTest\$TestFeature

Documentation

N/A

Contributor Checklist

• I have read the contribution guide.
• I have the right to contribute the submitted material under the project terms.
• I have updated tests and documentation where appropriate.
• If I used a coding assistant, I remain responsible for the entire contribution and have reviewed it accordingly.

[zakkak]

Hello @Zeavee, this is a kind reminder.