HtmlRecursiveTreeNodesAdaptor cast exception

[enda]

Hello,

I have a question about RecursiveTreeNodesAdaptor I want to have a link that opens the whole tree. I tried to bind the tree to my bean

<rich:tree switchType="client" id="tree">
 <rich:recursiveTreeNodesAdaptor id="contests" var="contest"
 binding="#{treeOpener.adaptor}"
 roots="#{contestSystemActionManager.currentTreeWithSites}"
 nodes="#{contest.childrenList}">

 <rich:treeNode
 id="node"
 icon="/img/tree/#{contest.type}.png"
 iconLeaf="/img/tree/#{contest.type}.png">
 <h:outputText value="#{contest.name}" />

 </rich:treeNode>
 </rich:recursiveTreeNodesAdaptor>
 </rich:tree>

bean

@Stateless
@Name("treeOpener")
public class treeOpener implements ITreeOpener {

 UIComponent adaptor;



 public UIComponent getAdaptor() {
 return adaptor;
 }

 public void setAdaptor(UIComponent adaptor) {
 this.adaptor = adaptor;
 }

 public void adaptorExpand() {
 //Object x = adaptor.getNodes();
 return;
 }
}

I cannot then recast UIComponent adaptor to HtmlRecursiveTreeNodesAdaptor;

(org.richfaces.component.html.HtmlRecursiveTreeNodesAdaptor) adaptor
throws
ClassCastException: Cannot cast org.richfaces.component.html.HtmlRecursiveTreeNodesAdaptor (id=188) to org.richfaces.component.html.HtmlRecursiveTreeNodesAdaptor

Someone knows?

To deploy the application correct where are supposed to be
richFaces-impl and richFaces-ui jars?

in {war.dir}/WEB-INF/lib?
or in ${ear.dir}
or in both?

Thanks