src/main/java/org/jboss/util/collection/ConcurrentSkipListMap.java
boolean casNext(Node<K,V> cmp, Node<K,V> val) {
            return nextUpdater.compareAndSet(this, cmp, val);
        }
boolean casNext(Node<K,V> cmp, Node<K,V> val) {
            return nextUpdater.compareAndSet(this, cmp, val);
        }
boolean casNext ( Node < K , V > cmp , Node < K , V > val ) { return nextUpdater . compareAndSet ( this , cmp , val ) ; }
compareAndSet next field
compareAndSet next field