It's more than window dressing. A year ago I added correct generics to about 50 000 lines of Java, an old module in a bigger program. The change was mostly m

It's more than window dressing. A year ago I added correct generics to about 50 000 lines of Java, an old module in a bigger program. The change was mostly mechanical, removing casts and adding signatures. I found a few places where refactoring had left behind a wrong type cast. Production logs demonstrated actual crashes corresponding to these cast. There were bugs in the issue tracker, marked unresolvable.