Google Guava library

• Официальный сайт
• Guava Explained

• Beautiful code with Google Guava: static imports, matching, split and join, filtering and ordering, multimaps and preconditions
• Google Guava Tutorial: fun with string-related stuff, joys of Ordering, taste the functional programming flavor in java, taste the functional programming flavor in java with predicates, back to the primitive(s)
• Guava's Bidirectional Maps
• Guava's Objects Class: Equals, HashCode, and ToString
• Google Guava's Predicates
• Event Programming with Google Guava EventBus
• Google Guava EventBus – an easy and elegant way for your publisher – subscriber use cases
• Multimaps – Google Guava
• BiMaps
• Multisets
• Collection creation and Immutability with Google Guava
• Guava Release 11's IntMath
• Mocking with JodaTime's DateTime and Google Guava's Supplier
• Caching With Guava
• Writing more elegant comparison logic with Guava's Ordering
• RateLimiter – discovering Google Guava
• Guava's New Optional Class
• From Optional to Monad with Guava
• Using Google Guava’s Ordering API
• Google Guava for cleaner code (слайды)
• Google Guava BloomFIlter (Bloom Filters by Example)
• Clean code with google guava (слайды)

• http://www.tfnico.com/presentations/google-guava (подборка ссылок)