Twole G is a cooperative web based software used to manage the requestes for water systems. You can see a demo at http://twole.isolasoftware.it/twole1.7/(username: admin, password: twole). The system is implemented with GWT 1.4 and gwt-ext.
NukeChat is a module designed for PHPnuke 6.0, but it should work upon previous releases such as the 5.6 or 5.5 and next. The core is a Java Applet : the Chat that works with JVM 1.1 through JVM 1.4.