Licensing
Oracle ADF Essentials is a free to develop and deploy packaging of the key core technologies of Oracle ADF. See the license terms for Oracle ADF Essentials: http://www.oracle.com/technetwork/licenses/adf-essentials-license-1837221.html For the "full" Oracle ADF: The Oracle Application Server licence includes a component for a license fee for Oracle ADF. This means that all users who have purchased an Oracle Application Server licence may use Oracle ADF for free. Users who want to deploy ADF to a third-party application-server can purchase an ADF runtime license at their local Oracle sales office. Users can develop and test Oracle ADF applications free of charge declaratively within Oracle JDeveloper.
Oracle Corporation purchased WebLogic in June 2008, and thus no longer regards it as a third-party application-server, so ADF is included in every WebLogic license.
Supported customers can get access to the source code for Oracle ADF through a request to Oracle Support.
Read more about this topic: Oracle Application Development Framework