jCarnegie is a class timetable scheduler written in Java. Its user interface and some parts of the design are based heavily on carnegie, a GNOME class scheduler. It comes with support for Arizona State University, and is extensible to support any university or college.
JCheckLinks a Java app that does hyperlink validation. It is multi-threaded, has an include/exclude list to determine which URLs will be harvested for more links and which will be only checked with a HEAD request, and adheres to the Robots Exclusion Protocol (/robots.txt).
JDHCP is a set of Java APIs for handling DHCP functions, per RFC 2131. These API's allow programmers to easily write DHCP clients, servers, and applications. A standalone DHCP client simulation is provided as an example.
JDxpc is a reimplementation of dxpc (the Differential X Protocol Compressor) in pure Java. It is an X protocol compressor designed to improve the speed of X applications run over low-bandwidth links (such as dialup PPP connections). JDxpc encrypts the compressed data stream in SSL.