Forbid subclass overrides. Method-only decorator. The loader-hook
validator (inside ModuleApi.stamp) walks the prototype chain at
class-import time and throws FinalViolationError when a subclass
has its own descriptor for an ancestor's @Final-marked method.
Forbid subclass overrides. Method-only decorator. The loader-hook validator (inside
ModuleApi.stamp) walks the prototype chain at class-import time and throwsFinalViolationErrorwhen a subclass has its own descriptor for an ancestor's@Final-marked method.