if (logger.isDebugEnabled()) logger.debug("Found CBE Index");
    private CostBenefitEvaluationIndex getCostBenefitEvaluationIndex() {        Collection c = costBenefitEvaluationIndexSubscription.getCollection(); // blackboard.query(CostBenefitEvaluationIndex.pred);        Iterator iter = c.iterator();        if (iter.hasNext()) {           if (logger.isDebugEnabled()) logger.debug("Found CBE Index");           return (CostBenefitEvaluationIndex)iter.next();           }        else {           if (logger.isDebugEnabled()) logger.debug("No CBE Index");           return null;           }    }    