it recommends to deploy a new formsapp.ear
The reason for this is-----
A Forms patch may contain changes to the Forms listener servlet code. If so, the patch will contain a new formsapp.ear file to update the J2EE Forms module.
To complete the patching process, this new formsapp.ear file must be deployed within the Forms OC4J container used with Oracle Applications.
This is how it is done in R12.
Set the env and stop all services.
Backup the present system-jazn-data.xml located at
Change the oc4jadmin password if required (if you dont know or remember)
Change the credentials tag in the file for user name oc4jadmin as follows:
First remove the encrypted line in between the tags
and then enter the password you want to give preceded by a !(exclamatory) symbol.
Save and exit the file.
Now Run the Deployment Script
Enter Application name for re-deployment ? forms
Enter Oc4j Instance password for re-deployment ? welcome (or current password)
and enter the Apps schema password when asked.
It also prompts whether to run Auto-config