Guava is a set of core Java libraries from Google that includes new collection types (such as multimap and multiset), immutable collections, a graph library, and utilities for concurrency, I/O, hashing, caching, primitives, strings, and more! It is widely used on most Java projects within Google, and widely used by many other companies as well.
Guava comes in two flavors:
- The JRE flavor requires JDK 1.8 or higher.
- If you need support for JDK 1.7 or Android, use the Android flavor. You can find the Android Guava source in the android directory.
