Web Integration System for Java development. This is a set of apis and java and jsp modules that allow to be integrated into a web environment to enrich the content and interaction (user registration, showcase, forums, etc.).
jStates is a java library for easy state machine design and implementation.It uses XML to define states and state transitions. jStates is aimed at easy integration with desktop J2SE applications, Struts, Commons Validator, Web and other J2EE technologies
Xenei.Imago blends servlets with XML transforms. Imago provides access to the servlet environment from the XSLT extension elements framework of Xalan and the emerging standards. Imago is well suited for integration of web services to legacy systems.