|Original author(s)||Kevin Bourrillion and Jared Levy (Google Collections Library) |
|Stable release||14.0.1 / March 15, 2013|
|Type||Utility and Collection Libraries|
|License||Apache License 2.0|
The Google Guava can be roughly divided into three components: basic utilities to reduce menial labors to implement common methods and behaviors, an extension to the Java collections framework (JCF) formerly called the Google Collections Library, and other utilities which provide convenient and productive features such as functional programming, caching, range objects, and hashing.
The creation and architecture of the collection component were partly motivated by generics introduced in JDK 1.5. Although generics improve the productivity of programmers, the standard JCF does not provide sufficient functionality, and its complement Apache Commons Collections has not adopted generics in order to maintain backward compatibility. This fact led two engineers Kevin Bourrillion and Jared Levy to develop an extension to JCF, which provides additional generic classes such as multisets, multimaps, bimaps, and immutable collections.
The library's design and code were advised and reviewed by Joshua Bloch, the original lead designer of the Java Collections framework, and Doug Lea, one of the lead designers of concurrency utilities in JDK.
See also 
- Apache Commons, another set of common libraries for Java.
- Google Guice, a Java framework for dependency injection, developed by Google.