ADF Table refresh odd behaviour: is it a bug?

Question

Hi,
I am using JDev 11.1.2.3.0.
I found a strange behaviour of ADF table, that looks like a bug.
I am using the following scenario:
1). I have a page with a table on it. The table displays the VO content and all it's columns are filterable.
2). There is another more complex filter with one parameter. The filter is always applied in addition to all existing filters and is implemented in VO implementation class by overriding the  buildWhereClause() method. The parameter value is stored in the VO as a property, and the property setter is exposed via client interface.
3). The filter parameter value is specified using Select One Choice component, the value is stored in the pageFlowScope variable (AutoSubmit=true).
4). The filter parameter setter is binded in the PageDef file as a method action and obtains the value from the corresponding pageFlowScope variable. When user press a button, the filter should be applied. The button has PartialSubmit=true, the table has a reference to the button in the PartialTriggers.
Here is some code:
// MyViewObjectImpl code fragment
private String filter;
public String getFilter() {
  return filter;
public void setFilter(String filter) {
  boolean valueChanged = true;
  if (this.filter != null && filter != null) {
    valueChanged = !this.filter.equals(filter);
  this.filter = filter;
  if (valueChanged) {
    clearCache();
// Backing bean code fragment
private RichTable table;
public void setTable(RichTable table) {
  this.table = table;
public RichTable getTable() {
  return table;
public String onApplyFilter() {
  BindingContainer bc = BindingContext.getCurrent().getCurrentBindingsEntry();
  OperationBinding op = bc.getOperationBinding("setFilter");
  op.execute();
  FilterableQueryDescriptor fm = (FilterableQueryDescriptor)table.getFilterModel();
  table.queueEvent(new QueryEvent(table, fm));
  return null;
All works fine except for one thing: the 26-th row of the table always remains from the previous filter value. More precisely, this number equals to iterator RangeSize+1.
Is this my fault or a bug?
Thanks.

Answer 1

Sorry, I forgot about the detailed instructions.
1). Setup database connection to match the real DB server address, username and password.
2). Run the ViewController project.
3). Choose character 'a' in the filter and push "Apply". This will give the countries, ending with the letter a.
4). Change filter to 'e' and push "Apply". This should give the countries, ending with the letter e, but in fact the second row is 'Argentina' (the first row from the previous query). Pressing the button again produces correct results.
Thanks.