How to Base an ADF Component on a Framework Extension Class
If you decide to create your framework extension classes in a separate project, ensure that you visit the Dependencies page of the Project Properties dialog box for the project containing your business components to mark the FrameworkExtension project as a project dependency.
If you package your framework extension classes in a Java Archive (JAR) file, ensure that you create a named library definition to reference its JAR file and also list the library in the library list of the project containing your business components. To create a library, use the Manage Libraries dialog box available from the Tools > Manage Libraries main menu. To verify or adjust the project’s library list, use the Libraries page of the Project Properties dialog box.