@Override
  public void sendBreak() {
    if (SystemInfo.isWindows) {
      writeLine("BREAK");
    }
    else if (SystemInfo.isUnix) {
      int pid;
      synchronized (myLock) {
        pid = myPid;
      }
      UnixProcessManager.sendSignal(pid, 3);  // SIGQUIT
    }
  }
@Override
  public void sendBreak()