public static boolean searchedOne() {
        if (Objects.nonNull(clusterCountLatch)) {
            if (clusterCountLatch.getCount() == 0) {
                return false;
            }
            clusterCountLatch.countDown();
            return true;
        }
        return false;
    }
public static boolean searchedOne() {
        if (Objects.nonNull(clusterCountLatch)) {
            if (clusterCountLatch.getCount() == 0) {
                return false;
            }
            clusterCountLatch.countDown();
            return true;
        }
        return false;
    }
public static boolean searchedOne ( ) { if ( Objects . nonNull ( clusterCountLatch ) ) { if ( clusterCountLatch . getCount ( ) == 0 ) { return false ; } clusterCountLatch . countDown ( ) ; return true ; } return false ; }
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@return is searched one
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