JustChat is a simple lighweight web-based chat interface. Client-side visualisation is a Java 1.2 Applet, with a nice and simple-to-use interface design. Backend is php and a MySQL OR PgSQL DB. Connection is made by HTTP server requests.
LumaQQ is a powerful QQ client writen in Java. It implements most functions of QQ, and a QQ-like graphical user interface for easy use. It's also a library, it has a reusable pure Java core on which you can build your own QQ-compatible application.
JavaIRC is a Java based IRC client. It provides minimalistic and simple to use interface. The interface is very much like mIRC, containing windows etc. Multiple network support is something that's required so it's included.
AdmIRC is a webmin module for irc server administration. It provides a config interface and advanced security and linking automatism support. Currently UnrealIRCD 3.2 and the services Anope and Epona are supported. Subprojects: irc newsbot and java tools
The aim of Howdy is to provide a simple, easy-to-use method of text-based communication over TCP/IP through a simple graphical user interface. Both the server and the client are small and run on all platforms supporting Java.
This program includes a gui interface and protocol(s) written in Java to be used as a chat program. The primary chat protocol is MSN, but the program is expanable with "plug-ins" that allow other protocols to be added such as Yahoo!, AIM, and the like.
Bot para irc feito em java que possibilita a integraзгo com algum tipo de banco de dados e faz o crontrole de algum(ns) canais, muito facil de usar pois vira com uma interface grafica e muitas funcoes.
mjcq is a command-line based ICQ client program written in pure JAVA and so is cross-platform. It uses the "jcq2k ICQ2000 OSCAR protocol plugin" library developed by Filippov Evgenii. (http://sourceforge.net/projects/jcq2k/)
mjcq provides an interface
Everybuddy Java (EBJava) is a messaging system written in Java. It consists of an applet and a server, and is used to log in to existing messaging services (AIM, ICQ, etc) through a unified interface. User settings are also stored on the server.
A java based chat program which runs on a local network using a main server and clients which connect to it. Made to be quite flexible in adding new features to. Currently only runs from a command line interface.
One of the project groups in Intake 6 is planning on doing a IM client which is secure. This includes messenging, file sending, picture drawing, video transmissions by far.
A secure PKI-based client/server encrypted chat engine under development in Java. Encryption will be supported via JCE and PKCS#11. A simple Javainterface can be implemented by other projects wishing to develop a Java GUI or CLI for the client.
Esfera is an open source project to create an instant messaging application with social networks features in a peer-to-peer scenario and an user-friendly JavaFx-based interface.