protected Node[] createNodes(T key) { return factory.createNodesForKey(key); }
@SuppressWarnings("unchecked") // Union2<T,Node> undesirable since refresh could not use raw keys list protected Node[] createNodes(Object key) { if (ChildFactory.isWaitNode(key)) { return new Node[] { (Node) key }; } else { return factory.createNodesForKey ((T) key); } }