Again, pure foolishness to think that this contributes to productivity. That aspect of Java can be very painful when you need to refactor your hierarchy if you

Again, pure foolishness to think that this contributes to productivity. That aspect of Java can be very painful when you need to refactor your hierarchy if you don't have the appropriate tools. But that is not necessairly a fault of Java. Refactoring class hierarchies too often likely indicates a problem in the requirements, the design or the specific developer team.