Utils.fail("Cannot Find FlatNode for given SIROperator");
Utils.fail("Cannot Find FlatNode for SIROperator: " + key);
    public static FlatNode getFlatNode(SIROperator key) {	FlatNode node = (FlatNode)SIRMap.get(key);	if (node == null)	    Utils.fail("Cannot Find FlatNode for given SIROperator");	return node;    }