Higher-Kinded Types

"With higher-kinded types [...] type operators can be parameterized by other type operators. Java doesn’t support higher-kinded types, but, if it did, you would be able to write something like this:"

  class GraphSearch<T> {
    T<Node> frontier;
  }

Source: https://www.stephanboyer.com/post/115/higher-rank-and-higher...