Templates (I assume you mean Generics, if we're talking Java?) aren't worth the hassle, but your code is flush with .filter() and .map()? Which rely entirely on

Templates (I assume you mean Generics, if we're talking Java?) aren't worth the hassle, but your code is flush with .filter() and .map()? Which rely entirely on generics to provide any typing support at all? You should learn to embrace generics; they're absolutely critical for the code you just said you write, and more. And they are most certainly not going away.