This Kotlin function @JvmStatic external fun registerNativeWindowFromSurface(): Integer; is found by with return type java/lang/Integer but when I add a Long: @JvmStatic external fun registerNativeWindowFromSurface(id: Long): Integer; I cannot find it with java/lang/Long in the argument. Is Kotlin’s Long a java long or a java/lang/Long? How can I get a Long class? >Solution : Integer… Read More What is the name of the Long class in Kotlin JNI?