Jacman is a GUI frontend to ArchLinux's "pacman" package management system. It provides an attractive interface to the majority of key features of Pacman, including installing, removing, and updating packages. It also includes "rollback" functionality to return back to an older version if necessary.
Logfilter is a tool for performing ad hoc analysis on Apache log files. Logfilter is especially useful when you wish to find records matching very specific criteria, since you can specify exactly which fields to match. The tool also plays well in a Unix environment by accepting input either through files or via stdin.
Evo Class Index is an annotation processor that at compile-time generates an index of classes implementing a given interface, classes annotated by given annotation, or placed in a common package. Its small run-time performance impact makes it an interesting alternative to any annotation scanning library like Reflections or Scannotations. The generated indexes are compatible with the ServiceLoader framework, so you will never need to create the files in META-INF/services by hand.
Ammentos is a lightweight persistence framework for JDK 5. It does not require any installation nor configuration; just put a jar file into your classpath and start writing code. It is designed so that your persistence code will be dramatically short and so that you won't have to spend a lot of time to learn how to use it. It is about 72Kb large and it does not require any external library except for your database JDBC driver. You can use it in desktop applications or in server-based environments.
SWTBot is a Java-based functional testing tool for testing SWT and Eclipse based applications. It provides APIs that are simple to read and write and hide the complexities involved with SWT and Eclipse. This makes it suitable for functional testing by everyone. A set of assertions that are useful for SWT are provided, and you can also use your own assertion framework. A recorder and driver are provided for recording and playing back tests along with Ant tasks so that you can run your builds from within CruiseControl or other CI tools.
google-rfc-2445 is a Java implementation of RFC 2445 recurrence rules. RFC 2445 describes a scheme for calendar interoperability. This project implements core parts of RFC 2445, including a parser for recurrence rules and date lists and a mechanism for evaluating recurrence rules.