URGENT: Substitution Problem when deployed in Server

Question

Hello:
I am facing a strange problem in student system self-service application customization in oxford university.
I have create a new XxigsPersProgAttemptVO extending PersProgAttemptVO and done the substitution. When run the the page though JDev it was showing the substituted values.
I have deployed the JPX and VO xml, classes into the server.
and bounced the apache.
When i run the application it's throwing following error
oracle.apps.fnd.framework.OAException: oracle.jbo.NoDefException: JBO-25002: Definition AttendanceTypeDesc of type Attribute not found
When i view the About this page Business components list, i couldn't find XxigsPersProgAttemptVO VO object.
But when i run the same page through JDEV, it's shows me my custom VO and substituded VO and extended EO.
which was right and page was working fine.
and when i run
jdr_utils.PRINTDOCUMENT('/oracle/apps/igs/person/components/server/customizations/site/0/PersProgAttemptVO',1000);
it's showed me
.........RESULT:
<?xml version='1.0' encoding='UTF-8'?>
<customization xmlns="http://xmlns.oracle.com/jrad" xmlns:ui="http://xmlns.oracle.com/uix/ui" xmlns:oa="http://xmlns.oracle.com/oa" xmlns:user="http://xmlns.oracle.com/user" version="9.0.3.8.13_1550" xml:lang="en-US" customizes="/oracle/apps/igs/person/components/server/PersProgAttemptVO">
<replace with="/oracle/apps/xxigs/person/components/server/XxigsPersProgAttemptVO"/>
</customization>
which was also right
then why i am getting the error in server and why the substitution is not taking in server.
Can any one help me in this regard pls?
Many Thanks in advance
Thanks and Regards,
Gupta

Answer 1

just want to add few things
I am substituting the VO which was used in subtab
I just found an article in Metalink for the similar issue and found as a bug in OAPageBean.java.
Metalink Doc ID: 418682.1
Symptoms
In Oracle Applications 11i, after extending any framework page by doing VO (View Object) substitution for any VO that is found in subtab in any region in the page either by adding a new attribute to the VO or changing any clause in the VO query such as adding condition for the WHERE clause.
Then deploying the extension to the server successfully, and after that going to the extended page to check the substitution by pressing on (About this page) , and the result will be that you will be not able to see the new substituted VOs.
Or in case of adding a new attribute to the VO, you will get a framework exception saying that the "new attribute" is not found.
Cause
This is caused by the following INTERNAL bug that is not published through Metalink to customers, and it is reported on R12 and backported to R11i :
Bug 4970554 - VO SUBSTITUTION NOT WORKING
Which say that: any substituted View Object used inside a SubTab Layout is not working because of a defect in the code of file (OAPageBean.java) for any version prior to (115.545.115104.3) in Oracle Applications 11i
Please let me know if you have any ideas
Thanks and Regards,
Gupta