exception handling

  @JvmStatic
        fun main(args: Array<String>)
        {
            launch()
            {
                try
                {
                    async()
                    {
                        println("async start")
                        throw Exception("aaa")
                        10

                    }.await()
                }
                catch (e: Exception)
                {
                    println("async exception")
                }

                println("after exception remaining code")
            }
            println("main end")
            Thread.sleep(1000)
        }