@Target([AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER, AnnotationTarget.CONSTRUCTOR]) annotation class Throws

This annotation indicates what exceptions should be declared by a function when compiled to a JVM method.

Example:

@Throws(IOException::class)
fun readFile(name: String): String {...}

will be translated to

String readFile(String name) throws IOException {...}