Exceptions thrown when sending to closed/cancelled Channel

ChannelSendExceptions.kt

import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.coroutineScope

suspend fun main() = coroutineScope<Unit> {
    val receive = Channel<Int>()
    receive.cancel() // ReceiveChannel
    // java.util.concurrent.CancellationException: RendezvousChannel was cancelled
    runCatching { receive.send(1) }.onFailure { println(it) }

    val send = Channel<Int>()
    send.close() // SendChannel
    // kotlinx.coroutines.channels.ClosedSendChannelException: Channel was closed
    runCatching { send.send(2) }.onFailure { println(it) }
}