handleIllegalArgumentException

@ExceptionHandler(value = [NoRoutingInfoFoundException::class, AgentRoutingSpecResolverException::class])
fun handleIllegalArgumentException(exchange: ServerWebExchange, ex: Exception): ResponseEntity<ErrorMessage>
@ExceptionHandler(value = [IllegalArgumentException::class])
fun handleIllegalArgumentException(exchange: ServerWebExchange, ex: IllegalArgumentException): ResponseEntity<ErrorMessage>