The idiomatic error handling mechanism of Java is the checked exception. This mechanism does not work with higher order functions.
You can emulate Rust's approach with Java, by creating what is essentially a sum type like Result. You'd have to enforce that any access to its content must also handle the error case, and I don't really know how to do that generally. There are various hacks, like having a bespoke sum type for that particular operation that twrows a particular exception on access to its content. But that gets really old, really fast.
You can emulate Rust's approach with Java, by creating what is essentially a sum type like Result. You'd have to enforce that any access to its content must also handle the error case, and I don't really know how to do that generally. There are various hacks, like having a bespoke sum type for that particular operation that twrows a particular exception on access to its content. But that gets really old, really fast.