ci: parallel build and jcstress jobs — ~50min → ~35min per PR, gates intact - #291
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The single serial job summed test (~15min) + jcstress (~30-35min) + jacoco to ~50min wall clock on every PR. The two workloads share nothing: jcstress is CPU-bound on its own forked JVMs. As parallel jobs the wall clock becomes max(~20, ~35) ≈ 35min with every gate intact - both jobs are required checks, so a concurrency regression still blocks the merge (deliberately NOT moved to nightly, which would weaken the PR gate). jacoco stays in the build job rather than a third parallel job: jacocoTestReport consumes the .exec execution data the test task writes in the same workspace; an isolated job would silently re-run the whole test suite to regenerate it.
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #291 +/- ##
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+ Coverage 79.26% 79.43% +0.16%
- Complexity 1032 1034 +2
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Files 83 83
Lines 3560 3560
Branches 457 457
============================================
+ Hits 2822 2828 +6
+ Misses 546 542 -4
+ Partials 192 190 -2 ☔ View full report in Codecov by Harness. |
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Architecture-pass item #7. The serial job summed test + jcstress + jacoco; the two heavy workloads share nothing, so they now run as parallel required jobs: build (docs-check → spotless → build test → jacoco → codecov) and jcstress (the 4-module suite, 55-min wedge guard with its documented rationale carried over).
Two deliberate choices:
jacocoTestReportconsumes the test task's.execdata from the same workspace; isolating it would silently re-run every test. Two jobs is the correct maximum parallelism without duplicated work.