Turbine is a servlet based framework that allows experienced Java developers to quickly build web applications. Turbine allows you to use personalize the web sites and to use user logins to restrict access to parts of your application. Turbine is a matured and well established framework that is used as the base of many other projects (like e.g. the excellent Jetspeed 1 Portals framework. Turbine is an excellent choice for developing applications that make use of a services-oriented architecture. Some of the functionality provided with Turbine includes a security management system, a scheduling service, XML-defined form validation server, and an XML-RPC service for web services. It is a simple task to create new services particular to your application. The Turbine core is free of any dependency on a presentation layer technology. Both JavaServer Pages (JSP) and Velocity are supported inside Turbine. For developers already familiar with JSP, or have existing JSP tag libraries, Turbine offers support for the Sun standard. Velocity is the favorite view technology of most users of the Turbine framework

Tapestry is a component-based web application framework, written in Java. Tapestry is more than a simple templating system.Tapestry builds on the Java Servlet API to build a platform for creating dynamic, interactive web sites. More than just another templating language, Tapestry is a real framework for building complex applications from simple, reusable components. Tapestry offloads much of the error-prone work in creating web applications into the framework itself, taking over mundane tasks such as dispatching incoming requests, constructing and interprettingURLs encoded with information, handling localization and internationalization and much more besides.

The Open For Business Project (Apache OFBiz) is an open source enterprise automation software project coverring: Open Source ERP, Open Source CRM, Open Source E-Business / E-Commerce, Open Source SCM, Open Source MRP & Open Source CMMS/EAM.

Apache Lenya is an Open Source Java/XML Content Management Framework and comes with revision control, site management, scheduling, search, WYSIWYG editors, and workflow.

Apache Cocoon is a web development framework built around the concepts of separation of concerns (making sure people can interact and collaborate on a project, without stepping on each other toes) and component-based web development. Cocoon implements these concepts around the notion of «component pipelines», each component on the pipeline specializing on a particular operation. This makes it possible to use a «building block» approach for web solutions, hooking together components into pipelines without any required programming.