LazyJ

LazyJ is a rapid development framework for Java WEB applications. It includes:

a very fast template engine that caches precompiled templates
response caching and data caching engines
database wrapper with connection pooling and shortcuts for common used functions
database-backed sessions
time-bounded servlet execution
easy file uploading from servlets or JSPs
notification framework (email and Yahoo! Messenger already implemented)
HTML widgets (for example select built from a tree of categories or a db-based list of options)
many other nice features.

Consult the API for more details. Sample code will come soon.

Download the package (sources included), changelog:

lazyj.jar (1.0.7 / 2013-01-16)
or
svn co https://lazyj.svn.sourceforge.net/svnroot/lazyj/trunk lazyj

If you want to compile the package you also need the Servlet API, you can use the one provided with you web server (eg. Tomcat) or download the reference API specifications.

Developers:

Costin Grigoras (blog)
Alina Grigoras (blog)

LazyJ is released under LGPL license.