You can identify the OA Framework version in your instance by activating diagnostics and click the “About This Page” from any OAF page. Click the “Technology Components” tab. The OA Framework version in the top row of the table can then be matched to the JDeveloper Patch.
Download the JDeveloper Patch.
2] Extract the JDeveloper patch in a directory say D:\DevSuiteHome_1\jdev
The patch actually contains below three directories
jdevbin– Includes an extended version of the Oracle JDeveloper 10gexecutable and OA Framework class libraries.
jdevhome– Includes the OA Framework Toolbox Tutorial source and developer working area.
jdevdoc– Contains documentation.
3]Define an environment variable
Define an environment variable JDEV_USER_HOME for your local machine. This has to be set to jdevhome\jdev directory. In above example it has to be D:\DevSuiteHome_1\jdev\jdevhome\jdev.
My Computer-Properties-Advanced tab-Environment Variables-New