AstroStack is an easy-to-use astronomical imaging and processing tool geared towards the use of inexpensive webcam CCDs. It provides a very tunable environment to produce the best quality images. It supports the following features: tunable webcam sampling; image stacking (averaging, additive etc.); pre and post-capture gamma (brightness) and contrast correction; dark-shot CCD calibration (subtractive); and an internal 16-bit grey-scale format for optimal resolution.
Blacken is a Java library for Roguelike development. It supports arbitrarily resizing the window. It maintains a "preferred size", changing the font size as needed. By default, all applications support Alt-Enter for fullscreen mode. It strives to support Unicode well. A cell contains a sequence of codepoints. Codepoints may be outside the Basic Multilingual Plane or zero-width accents. All key input consists of valid Unicode codepoints. Special keys are handled by codepoints in "private use" planes. Modifier keys are handled through a prefix character (like Unix systems handle Alt via the Escape character).
Bluehorn Reader crawls RSS feeds and makes their content available to clients (only a browser client exists currently). It supports multiple users, whose sessions' look and feel can be customized based on each place they log in from. A potentially useful feature is that, while it should be able to support a large number of users from a single host, if that is not enough, more hosts can be added to share the load, with only minor configuration tweaks. The Web server part is mainly in JSP, so it should be easy to play with it and adapt it to support other use cases.
Corn Gate is designed to simplify service definitions and implementations in Java. It comes with several handy out-of-the-box functionalities, including security, registry, Spring and EJB integration, filters, shared data stages, client contexts, etc. JSON-RPC/HTTP and REST/HTTP protocols are supported. Remote service calls can be done through various client technologies. Since Gate supports standard HTTP communication mechanisms, almost any client technology can access services remotely.
HTMLSplicer is a toolkit that provides methods to compose complex HTML documents from simpler HTML documents, called templates. It can be used to generate servlet responses in Java Web applications, without adopting a full-fledged presentation layer framework like JSP, JSF, Apache Wicket, or GWT.
Given a chord progression and a music style, JChordBox generates a song. It is a library tool that can generate backing tracks from a chord progression and a music style. It contains several command line processes detailed in the user guide. It also contains a MIDI song player that can loop, play, pause, stop, rewind, forward, mute, or solo tracks, display transport information, and much more. It runs in a terminal.
JS-Collider is an event-driven Java network NIO framework. It is designed to provide maximum performance and scalability for applications having not too many connections but significant amounts of network traffic (both incoming and outgoing). Performance and scalability are achieved via lock free algorithms and atomic states usage. It supports UDP (with multicast) as well. One of the implementation points is to avoid unsafe cheating; it should work the same way on all JVMs (Java 1.7). It supports shared memory IPC.