While developing the application, you were probably just clicking on the Run button to run your application. As you have noticed, this means that your application runs in the built-in WebLogic server on your local machine. This instance of WebLogic is integrated with JDeveloper, so it contains all of the necessary libraries and settings for running ADF applications.

In addition to these built-in WebLogic instances, your development server administrator must set up at least a test/integration server where you can collect all of the components of the application for integration testing. Your environment might also include preproduction or other WebLogic server instances before the final production environment.