Progression

val event: Event = ObjectMapper().reader().readValue(eventString)

No value type configured for ObjectReader

// Generate a Random String
 private fun generateRandomString(length:Int) : String =
     sequence { random.nextInt(128) }
    .map(Int::toChar)
    .filter {
        it in '0'..'9' || it in 'a'..'z' || it in 'A'..'Z'
    }   
    .take(length)
    .joinToString( separator = "" )

.filter(::isValidCharacter)

generateRandomString(length, matcher = {default code})

.map(::generateRandomString)

.filter(Char::isLetterOrDigit)

import kotlin.dom.*

1.0.0-beta-2422