B4J Question TreeView Method: getItem not found

Dim nw As JavaObject = PickResult.RunMethod("getIntersectedNode", Null)

Sub TableView_Filter(e As Event)
   Try
     Dim jo As JavaObject = e
     Dim PickResult As JavaObject = jo.RunMethod("getPickResult", Null)

     Dim toString    As String = PickResult.RunMethod("toString", Null)

     '---------------------------------------------------------------------------------
     '  If NOT a  TableColumn then probably something like a scrollbar 
     '---------------------------------------------------------------------------------                   
     If  toString.Contains("TableColumn")  =  false Then return

     If PickResult.IsInitialized Then
       Dim nw As JavaObject = PickResult.RunMethod("getIntersectedNode", Null)
       If nw.IsInitialized Then
         '-------------------------------------------------------------------------------
         '  Without the toString check for TableColumn above this routine 
         '              getItem below crashes when clicking on the scrollbars
         '-------------------------------------------------------------------------------
         Dim item As Object = nw.RunMethod("getItem", Null)

         If item Is ImageView Then
           Dim iv As ImageView = item
           'your image view is here.
           Log("Found: " & iv)
           e.Consume
         End If
       End If
     End If
   Catch
     Log(LastException)
   End Try
End Sub