You may have noticed that I did some autorefactor related stuff lately. I am repeating an experiment executing bulk autorefactoring on a >16k classes legacy application to investigate the result. Autorefactorings are grouped. Execution is done via jenkins pipeline doing git commits between refactoring groups. The outcome is pushed and automatic testing is done. The line coverage is 43% so some semantic testing is done. @Fabrice-TIERCELIN fixed a lot of bugs lately and so i was able to enable most of the refactorings and the code compiles and all tests pass now.