docs: protected String[] getSchedulerCommand() {
      List<Integer> freePorts = new ArrayList<>(SchedulerUtils.PORTS_REQUIRED_FOR_SCHEDULER);
      for (int i = 0; i < SchedulerUtils.PORTS_REQUIRED_FOR_SCHEDULER; i++) {
        freePorts.add(SysUtils.getFreePort());
      }
  
      return SchedulerUtils.schedulerCommand(config, runtime, freePorts);
    }