A software developer is looking for a common framework for Java development. Which framework could they use?

Apache Struts is a widely recognized framework for Java development that focuses on building web applications. It follows the Model-View-Controller (MVC) architectural pattern, which helps separate the application's concerns, making the codebase more manageable and scalable. This separation of concerns facilitates the development of complex web applications by allowing developers to work on different aspects of the application independently.

The framework also provides a robust architecture for developing enterprise-level applications, including support for internationalization, validation, and tile management. Its popularity in the Java ecosystem stems from its support for traditional Java practices while offering powerful tools for handling requests and responses in web applications.

Other frameworks listed, such as Django and Twisted, are primarily associated with Python development. Ramaze also does not have the same recognition and support within the Java community as Apache Struts does, which is well-established and commonly taught to Java developers. Therefore, Apache Struts is indeed the appropriate choice for a common framework in Java development.