[Bug] Unknown error while using compute isolation

[albertms10]

Describe the bug

After rewriting Lists as Sets in 5711a86 (using SplayTreeSet concrete implementation), compute isolation seems to be performing with issues.

cabin_booking/lib/model/cabin_manager.dart

Line 247 in 036022a

final cabins = await compute(_parseCabins, content);

cabin_booking/lib/model/school_year_manager.dart

Line 65 in 036022a

final schoolYears = await compute(_parseSchoolYears, content);

Expected behavior

The compute function correctly returns the expected result from JSON parse methods.

System information

• Device: MacBook Pro
• OS: macOS 12.6
• Flutter version: 3.3.8