Guys, I wrote a `fun` with an action callback para...

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[romane]

Guys, I wrote a fun with an action callback parameter in kotlin: callback:()->Unit, but when using it in java I have to declare ()->{return null;} to satisfy the callback parameter, that is, in java it's a Function, not an Action. Is there a simple say to make it behave as a proper action and not have to provide a this fake return?