PRADO is a component-based and event-driven programming framework for developing Web applications in PHP 5. PRADO stands for PHP Rapid Application Development Object-oriented. PRADO is an open source project. You can use it for free in either open source or proprietary applications.
OpenXava is a Java Framework for rapid web application development and easy AJAX utilization. Business logic and associating data structures are sufficient for generating interactive frontends. It's compatible to a wide range of open source and proprietary plattforms, including databases, application servers and enterprise repositories.