BBCT is a simple database app for your baseball card collection. You can add information about the cards in your collection, view details about individual cards, and filter the list of cards according to a limited set of criteria. BBCT helps you organize your collection and quickly look up which cards you own.
Geomajas profiling project is a simple application profiling system that can be used to continuously gather profiling information in a running application. It allows you to get the number of invocations and total/average time. Profiling data can also be grouped to allow total time to be split up over different groups. There is utility code to use this for JDBC access profiling, and JMX integration for accessing the data which is gathered and reset the counters.
Zabbix/J is a framework for integrating Zabbix monitoring into Java applications. Zabbix is an "enterprise-class Open Source distributed monitoring solution" which provides telemetry and triggers across entire infrastructures. Zabbix/J makes it simple to expose metrics from your Java applications, giving them visibility as first class citizens in a Zabbix configuration.
jmxtrans is effectively the missing connector between JMX and whatever logging or graphing package that you can dream up. jmxtrans is very powerful tool that reads JSON configuration files specifying servers/ports and JMX domains/attributes and then outputs the data in whatever format you want via special "Writer" objects that you can code up yourself. It does this with a very efficient engine design that will scale to querying literally thousands of machines. The core engine is pretty solid and writers are included for cacti/rrdtool, graphite, and stdout.
Scopserv Communicator is an audio/video Internet phone and instant messenger that supports some of the most popular VoIP and instant messaging protocols such as SIP, Jabber (XMPP), AIM/ICQ, MSN, Yahoo! Messenger, and a whole lot of other useful features. ScopServ Communicator is based on the SIP Communicator softphone.
Geomajas geocoder plug-in is a Geomajas plug-in that provides a generic command and GWT widget for finding map locations based on a free string. You can configure how exactly this conversion is done, using either your own data or some external service like Geonames or Yahoo! PlaceFinder.