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feat: bundle Devel::Size with JVM footprint estimates - #1937
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Add the Devel::Size Perl wrapper and Java provider backed by JOL. Document that total_size measures reachable PerlOnJava JVM objects, and add focused coverage for exports, scalar and aggregate growth, shared references, and cycles. Generated with [Codex](https://openai.com/codex) Co-Authored-By: Codex <223556219+openai-codex[bot]@users.noreply.github.com>
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Summary
Devel::Size0.87 with Java XS registration and JOL-backed JVM size estimates.total_sizeincludes reachable PerlOnJava runtime objects and that$warn/$dangleremain compatibility variables.Validation
nice -n 19 make: passed.JPERL_TEST_FILTER=Devel-Size nice -n 19 make test-bundled-modules: passed.make check-links: passed.JOL could not obtain
Instrumentationor the Serviceability Agent under the current launcher, so estimates use JOL's fallback JVM layout strategy.Closes #1880