People hate how Java did it. That's not the same as hating all possible expressions of the same idea. That's true of a lot of good ideas that were poorly execu

People hate how Java did it. That's not the same as hating all possible expressions of the same idea. That's true of a lot of good ideas that were poorly executed in Java. Making it impossible to ignore potential errors is something I'm very happy to have as long as the tools for working with it are pleasant. Java's checked exceptions were decidedly unpleasant. Algebraic return types with combinators to work with them actually are pretty nice.