The JDK caching section quoted informal figures from the feature PR. The
setup-java-benchmarks repository now has a JDK cache scenario workflow that
reproduces the comparison end to end, so cite its numbers across two
independent runs and name the workflow instead.
Also record the cold-run cost, the flat build-step control, and the fact
that the job-level median is noisier than the setup-step median, so the
tradeoff is explicit rather than implying the speedup is free or precise.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 664777db-7250-417d-b94d-d5529ec3fec2
