Command Link inside of datatable

Question

I have the following problem when I put a command link inside a datatable.
The action or actionlisteners never get called. Now here is the funny thing.
1. If I move the action link outside the datatable it works.
2. if I change the scope of the bean to session it works
3. if the datatable contains more than 1 row it works
The last one tells me this is a bug.
To test this I change the sql query to limit the result so 1 row would be returned.
The sql query returns a CachedRowSetImpl
I believe this is a bug.
<h:dataTable rows="6" first="0" id="table" binding="#{event.eventdata}" value="#{event.eventdetails}" var="eventdetail">
<h:column>
<h:commandLink value="#{eventdetail.title}" action="#{event.resaveEventaction}" actionListener="#{event.resaveEventdetails}" id="test" >
</h:commandLink>     
</h:column>
<h:column>
</h:dataTable>

Answer 1

Here is some additional information that makes this more confusing.
The following code is used to populate the datatable
public CachedRowSetImpl getEventdetails(){
     CachedRowSetImpl rs2 = null;
     String selectedeventmy = selectedevent;
     int rowcount = 0;
     try { 
          sql = "SELECT * FROM event where eventid='"+selectedeventmy+"' ";
          rs2 = RunQuery.mysql(sql);
          rowcount = rs2.size();
     } catch (Exception e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
     return rs2;
where RunQuery.mysql is
public class RunQuery {
     public static CachedRowSetImpl mysql(String sql) throws Exception {
          CachedRowSetImpl crset = null;
          InitialContext initCtx = new InitialContext();
          Context envCtx = (Context) initCtx.lookup("java:comp/env");
          try {
               DataSource ds = (DataSource) envCtx.lookup("jdbc/associations");
               Connection conn = null;
     Statement stmt = null;
     conn = ds.getConnection();
     stmt = conn.createStatement();
     stmt.execute(sql);
     ResultSet rs = stmt.getResultSet();
     crset = new CachedRowSetImpl();
     crset.populate(rs);
     rs.close();
     stmt.close();
     conn.close();
          } catch (Exception e) {
               System.out.println(e.getMessage());
          return crset;
if I replace the line
String selectedeventmy = selectedevent;
with String selectedeventmy = "61";
it works properly.
selectedevent is populated from the following triggered by another action event on another page. ? The funny thing is if the result set returns more that 1 row all works ok.
public String viewDetails(){
     System.out.println("Running view Details");
     int selectedrow = eventlist.getRowIndex();
     Object selected = eventlist.getRowData();
     Map rowdata = (Map) selected;
     selectedevent = rowdata.get("eventid").toString();
     System.out.println("Selected Event:"+selectedevent);
     outcome="eventdetails";
     return outcome;
}