handle SIGPIPE in Scala

sigpipe.scala

import sun.misc.Signal
import sun.misc.SignalHandler

object Foo extends App {
  val signal = new Signal("PIPE")

  val handler = new SignalHandler {
    def handle(signal: Signal): Unit = {
      Console.err.println(s"""caught signal: $signal""")
      sys.exit(128 + signal.getNumber)
    }
  }

  Signal.handle(signal, handler)

  while (true) {
    println("foo")
    Thread.sleep(50)
  }
}

I don't know if it is a convention or there is some deeper logic behind when receiving SIGPIPE to exit with status code 141.

But: 141 = 128 + 13 and SIGPIPE number is 13. There must be a connection.