We grant you a nonexclusive, nontransferable limited license to use the programs only for the purpose of developing, testing, prototyping and demonstrating your application, and not for any other purpose. If you use the application you develop under this license for any internal data processing or for any commercial or production purposes, or you want to use the programs for any purpose other than as permitted under this agreement, you must obtain a production release version of the program by contacting us or an Oracle reseller to obtain the appropriate license.
I've been using Weblogic since 1999 (I think Version 2) and there has never been completely free version. They have always been encumbered with the terms as I outlined above.
If you are looking for a free EJB container, there are several, for example Apache Geronimo and Sun's Glassfish