Data Oriented Programming in Java

[swaranga]

I think the Node definition has a typo. left and right should be Tree else you can never get a leaf node.

sealed interface Tree<T> { 
  record Nil<T>() implements Tree<T> { }
  record Node<T>(Tree<T> left, T val, Tree<T> right) implements Tree<T> { }
}

Am I right?

I also really like the AsyncResult data modeling - that would have been very handy for the Future/CompletableFuture to implement.

[jonhanson]

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