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private void createNodesForKeys(List<Key> keys){
nodesHash.clear();
for(Key key: keys){
nodesHash.put(key, createNodes(key)[0]);
Node[] ns = createNodes(key);
if (ns != null && ns.length > 0) {
nodesHash.put(key, ns[0]);
}
((AbstractNode)node).setIconBaseWithExtension("org/netbeans/modules/j2ee/ejbjar/project/ui/wait.gif"); //NOI18N
return node == null ? new Node[1] : new Node[] { node };
return node == null ? new Node[0] : new Node[] { node };
public void propertyChange(PropertyChangeEvent propertyChangeEvent) {