While I fully agree as a rule you shouldn't have to do manual memory management in Java, the functionality is there and useful in exceptional situations. I've

While I fully agree as a rule you shouldn't have to do manual memory management in Java, the functionality is there and useful in exceptional situations. I've seen integrations where there's no '100% pure Java' implementation available, so you have to choose between picking a battle-tested native library or reimplementing from scratch in Java (which sometimes isn't even possible with closed source systems)