WebSec4J(Web Security for Java) is an open source java library that is
LIPL language
Portable mp3 Player
Beans libraries, to connect mysql database through beans properties
Lemansys LEWS Alternative Framework for Java Web Applications
A framework for the visualization of multi-layer networks
Open, modular, portable, and stable client-server ERP
FlexSemanticP2P
set of classes to port open graph of facebook to java programs and app
Custom JSP Utility TagLibs
An alternative to JMX