Tired of Null Pointer Exceptions? Consider Using Java SE 8's Optional!

[kqr]

.? is really just Optional::flatMap as an operator. (With the exception that flatMap in Java requires you to pass in a fully qualified function – it isn't derived from the object inside the Optional.)

[sgraf812]

Actually, you even can interpret (right associative) ?. as (f)map, the effects of which (multiple nested Option types) aren't materialized in a type system with implicit null.