Commons Lang 1.0. The standard Java libraries fail to provide enough methods for manipulation of its core classes. The Lang Component provides these extra methods.

Via Jakarta News.

The Complete Pasta Theory of Software.

Via The Fishbowl.

Hmmm. My current system is probably tortellini code - components, but some are too large to swallow. ;-)

Teaching Java the Extreme Way - a good intro to test-first programming.

Java examples and tools are used, but the technique is applicable to any environment.