return new SchedJoinType (SchedJoinType.WEIGHTED_ROUND_ROBIN, srcsWeight, this);
return scheduler.newSchedJoinType (SchedJoinType.WEIGHTED_ROUND_ROBIN, srcsWeight, this);
    SchedJoinType getSchedType ()    {        return new SchedJoinType (SchedJoinType.WEIGHTED_ROUND_ROBIN, srcsWeight, this);    }