Annotations are useless. And this is just a matter of properly handling of null values coming from external code and matter of habit to use Option where value can be nullable. There should be no cases when Option itself can be null. In fact this is extremely convenient to assume that all variables are not null and removes a lot of headache and mental load. But, well, convenient use of this approach is impossible without a significant doze of functional code. Which is good too, but, of course requires changes in habits and mental model.
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Annotations are useless. And this is just a matter of properly handling of null values coming from external code and matter of habit to use Option where value can be nullable. There should be no cases when Option itself can be null. In fact this is extremely convenient to assume that all variables are not null and removes a lot of headache and mental load. But, well, convenient use of this approach is impossible without a significant doze of functional code. Which is good too, but, of course requires changes in habits and mental model.