// WITH_STDLIB // FILE: MyInterface.java package test.pkg; interface MyInterface { void act(); } // FILE: MyHandler.java package test.pkg; import java.util.List; public class MyHandler { public void stash(MyInterface actor, List actors) { actors.add(actor); } } // FILE: main.kt package test.pkg fun test(handler: MyHandler, list: List) { val lambda = { println("hello") } handler.stash(lambda, list) }