2 datatables in the same page...

Hi guys,
i've a strange question about datatables.
I've 2 datatables in a page.
At the end of first datatable there is a ok button that takes values of the rows and put them into a table of db,performing navigation in the same page.
My question is:
in the second datatable i've a field that is a selectOneMenu populated from values of first datatable.
When i click on the ok button of first datatable my application calls a bean that collect desired values into a list.
I have to load this list in the selectonemenu of the second datatable.
How can i do it?
This is the list that i populate with first datatable and i have to show it in selectonemenu of the second datatable
public List getNames(){
                  if(names==null){
              names=new ArrayList();
                  return names;
    public void setNames(List names){
         this.names=names;
    }This is the expetion i receive
[ServletException in:/templates/topLayout.jsp] javax.servlet.jsp.JspException: Collection referenced by UISelectItems with binding '#{biosamplesTable.names}' and Component-Path : {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /pages/protected/uploadBiosample.jsp][Class: javax.faces.component.html.HtmlPanelGrid,Id: mainLayout][Class: javax.faces.component.html.HtmlPanelGroup,Id: pageContext][Class: javax.faces.component.html.HtmlForm,Id: _id11][Class: javax.faces.component.html.HtmlDataTable,Id: _id58][Class: javax.faces.component.UIColumn,Id: _id59][Class: javax.faces.component.html.HtmlSelectOneMenu,Id: _id61][Class: javax.faces.component.UISelectItems,Id: _id62]} does not contain Objects of type SelectItem' Can someone help me?

http://forums.adobe.com/thread/416892

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