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Why There Is Interface Pollution in Java 8

An excellent Java 8 tutorial on How Oracle fared with implementation of Lambda expression :

Informatech CR Blog

Edwin DalorzoI was reading this interesting post about The Dark Side of Java 8. In it, Lukas Eder, the author, mentions how bad it is that in the JDK 8 the types are not simply called functions. For instance, in a language like C#, there is a set of predefined function types accepting any number of arguments with an optional return type (Func and Action each one going up to 16 parameters of different types T1, T2, T3, …, T16), but in the JDK 8 what we have is a set of different functional interfaces, with different names and different method names, and whose abstract methods represent a subset of well know function signatures/function arities (i.e. nullary, unary, binary, ternary, etc).

The Type Erasure Issue

So, in a way, both languages suffer from some form of interface pollution (or delegate pollution in C#). The only difference is that…

View original post 1,551 more words

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