Heritrix is the Internet Archive's open-source, extensible, web-scale, archival-quality web crawler project.

(tags: web search crawler spider java opensource software programming)

Functional Java is an open source library that aims to prepare the Java programming language for the inclusion of closures. It also serves as a platform for learning functional programming concepts by introducing these concepts using a familiar language.

(tags: library java opensource programming scala language languages functional closures)