Unable to get simplest example working

[dudeNumber4]

Trying to use Pair. Using jshell 17, passing your jar in --class-path. Code follows. What am I missing?

import wtf.g4s8.tuples.Pair;
public class B
{
    public static void b()
    {
        Pair<Integer, String> p = Pair.of(1, "you gotta have a pair");
        p.apply((i, s) -> System.out.println(s));
    }
}

Error:
incompatible types: inference variable R has incompatible bounds
lower bounds: java.lang.Object
lower bounds: void

[g4s8]

@dudeNumber4 you are looking for accept() method: https://github.com/g4s8/tuples/blob/master/src/main/java/wtf/g4s8/tuples/Pair.java#L24

apply() expects a bi-function with a result: BiFunction<? super T, ? super U, ? extends R>, it can't accept void consumer like println, but accept takes BiConsumer<? super T, ? super U> argument.

This example works fine:

var p = Pair.of(1, "you gotta have a pair");
p.accept((i, s) -> System.out.println(s));