[shai-almog]

The native interface scan loaded every class in the app output, including the app's own java.* classes. The JVM refuses to define those (SecurityException: Prohibited package name), so each one logged a full stack trace. A native interface can never live in java.*, so they are now skipped before loading.

🤖 Generated with Claude Code

[github-actions]

Flutter vs Codename One

Same application, built both ways: Flutter's AOT compile of the gallery, and the identical Dart source transpiled to Java on Codename One. Lower is better for every metric, so a ratio above 1.00x means Codename One is ahead by that factor.

javascript

9 interleaved rounds; host load 2.3, 1.43, 0.62

Metric	Codename One	Flutter	Ratio	Winner
Installed size	103.9 MB	122.5 MB	1.18x	Codename One
Executable code	12.8 MB	25.2 MB	1.96x	Codename One
Download size (zipped)	76.3 MB	84.1 MB	1.10x	Codename One
Cold start to first frame on screen	--	--	--	not measured
Memory at rest	--	--	--	not measured

Compute -- the VM workloads (vm/benchmarks), run inside each app; time is the best of the app's own repetitions, higher ratio means Codename One is faster.

Workload	Codename One	Flutter	Ratio
intArithmetic	646 ms	wrong result	Flutter: wrong result
longArithmetic	5045 ms	did not run	Flutter: did not run
mathTranscendental	564 ms	did not run	Flutter: did not run
arraySequential	234 ms	82 ms	0.35x
arrayRandom	1008 ms	wrong result	Flutter: wrong result
objectAllocation	38 ms	27 ms	0.71x
valueEscape	154 ms	7 ms	0.04x
hashMapChurn	1116 ms	244 ms	0.22x
stringBuilding	520 ms	108 ms	0.21x
recursion	508 ms	488 ms	0.96x
quicksortBench	407 ms	wrong result	Flutter: wrong result
Geometric mean			0.28x

Gate: NOT JUDGED -- flutter-baseline: linux gallery/code_bytes is rebaselined from the same value by more than one pull request (pr/6032.json, pr/6059.json): two changes moved the same benchmark without seeing each other. Re-measure on top of both and keep one rebaseline.; BEHIND FLUTTER on Compute (geomean of the VM workloads) (reported, not gated: a loss to Flutter on the web is currently accepted).

the JavaScript adapter needs a Chrome DevTools driver; sizes are reported and timings are not
This platform's adapter has not been exercised end to end before; treat the first published run as the thing under review.

Codename One wins 3 of 3 measured metrics across 1 platform(s).