tree2 expand myfaces 1.0.9

[Yixing Ma]

How to expand tree in MyFaces 1.0.9?   I've been using tree2 for a while. So far only the myfaces 1.0.9 works for my program. Other implementations have this and that problems, and not quite stable.   I want to use the expand function of the tree2. How to implement it in myfaces 1.0.9? Which class should I modify. I just want the tree to be expanded everytime it refreshes.   Regards