Codewars Throw without throwing

exceptions.kt

import java.util.*
import java.io.*
import java.nio.channels.FileChannel.MapMode

fun arrayIndexOutOfBound() {
    val a = arrayOf<Int>()[-2]
}

fun negativeArraySize() {
    val n = Array(-10, {0})
}

fun noSuchElement() {
    listOf<Int>().iterator().next()
}

fun arithmetic() {
    val a = 7 / 0
}

fun classCast() {
    val c = 4 as Boolean
}

fun stackOverflow() {
    if (true) stackOverflow()
}

fun nullPointer() {
    val a: String? = null
    a!!
}

fun numberFormat() {
    "hka".toInt()
}

fun illegalArgument() {
    val a: String? = ""
    a?.toInt()
}

fun emptyStack() {
    val s = Stack<Int>()
    s.pop()
}

fun bufferOverflow() {
    val f = File("text.txt")
    val raf = RandomAccessFile(f, "rw")
    val ch = raf.channel
    val buf = ch.map(MapMode.READ_WRITE, 0, f.length())
    buf.put(ByteArray(10) { pos -> 1.toByte() })
}

fun arrayStore() {
    val stringLists = Array<List<String>>(1) { emptyList() }
    Arrays.fill(stringLists,' ')
}

fun unsupportedOperation() {
    val newList = Collections.unmodifiableList(listOf<Int>())
      newList.add(3)
}

fun illegalState() {
    val a = arrayListOf<Int>(1, 2, 3, 4, 5)
    a.listIterator().remove()
}