================ Step #1 ================= Cleaning output files: out/production/module/Super.class End of files Exit code: NOTHING_DONE ------------------------------------------ Compiling files: src/Super.java End of files Cleaning output files: out/production/module/META-INF/module.kotlin_module out/production/module/Sub.class End of files Compiling files: src/Sub.kt End of files Exit code: ABORT ------------------------------------------ COMPILATION FAILED Cannot weaken access privilege 'public' for 'y' in 'Super' 'y' hides member of supertype 'Super' and needs 'override' modifier