I found out. Its only to assign componentState attribute with value from backing bean, then it works.

I have another thing to wonder about. My page is divided into 2 parts. First part contains rich:tree, content of the second part depends on which node is clicked from tree. I am thinking about how to render (on click in tree) only this second part (without rendering whole page). Cant use a4j:include, cause I dont want tree to be rerendered.

Any sugestions?

Hi Venkat,

which switch do you use for your tree??

So your problem is that when you change view by clicking tree node, you reload whole page? Look inside your faces-config.xml file and delete all navigation rules inside there. This is the cause of the "ajax request cause non-ajax request" and reloads whole page.