Uncommons Maths

High-performance random number generators and other mathematical utilities. Includes support for generating random numbers from several probability distributions (Uniform, Gaussian, Binomial, Poisson and Exponential). Also includes classes for working with combinatorics and statistics.
WebStart Demo: Probability Distributions

A Java Programer's Guide to Random Numbers: Part 1, Part 2, Part 3

ReportNG

ReportNG is a simple HTML reporting plug-in for the TestNG unit-testing framework. It is intended as a replacement for the default TestNG HTML report. ReportNG provides a simple, colour-coded view of the test results. ReportNG also includes a second reporter that produces JUnit format XML output.
Sample Reports: Errors, Real World Example

Uncommons Antlib

Experimental tools for building modular software with Apache Ant. See also 15 Tips for Better Ant Builds.