OAF - How to find the correct version of JDeveloper for EBS 11i or R12.x

Check OAF Version from Oracle EBS Instance
1. At the bottom left of any page of OAF, click the About This Page
2. Click Tab "Technology Components"

3. Login My Oracle Support at http://support.oracle.com
4. Search Doc id 416708.1
5. Looking for the same version in the table and download the appropriate patch