Testing Kotlin's @JvmSynthetic annotation

Apple.kt

package foo

class Apple

fun Apple.slice() { }

@JvmSynthetic
fun Apple.peel() { }

JavaKnife.java

package foo;

public class JavaKnife {
    void test() {
        Apple apple = new Apple();
        foo.AppleKt.slice(apple);
        foo.AppleKt.peel(apple); // Cannot resolve method 'peel(foo.Apple)'
    }
}

KotlinKnife.kt

package foo

class KotlinKnife {
    fun test() {
        val apple = Apple()
        apple.slice()
        apple.peel()
    }
}