JDeveloper OC4J - client method calls

Question

I am having trouble in getting result while I was calling a clientt method in OC4J.
The SQL query used was not fetching results. when I run the query in a SQL developer it is working fine.
Showing no error but not bringing any results.
The client method is:
public KanbanSupplierViewRow findBySupIdMinNMax(long idl, long idu){   
setWhereClauseParam(0,new Long(idl));
setWhereClauseParam(1,new Long(idu));
executeQuery();
return (KanbanSupplierViewRow) first();
----------------------------------------------------Please see the message out put from debugging mode
[3227] ViewObject : Created new QUERY statement
[3228] select supplier_id,
supplier_number,
supplier_name,
created_by,
creation_date,
last_updated_by,
last_update_date
from ( select a.supplier_id,
a.supplier_number,
a.supplier_name,
a.created_by,
a.creation_date,
a.last_updated_by,
a.last_update_date,
rownum r from ( select * from ekb_suppliers order by supplier_number) a where rownum < :2 ) where r > :1
[3229] Binding param 1: 1
[3230] Binding param 2: 101
2005-07-14 14:21:00,375 DEBUG [KanbanSupplierAction_db]
Result Null

Answer 1

Test