toJavaInstant

fun Instant.toJavaInstant(): Instant(source)

import kotlin.time.Instant
import java.time.Instant as JInstant

fun main() {
    val kotlinInstant = Instant.now()
    val javaInstant: JInstant = kotlinInstant.toJavaInstant()
    println(javaInstant)   // prints the Java Instant representation
}