Guava is a suite of core and expanded libraries that include utility classes, Google's collections, I/O classes, and much more.

Guava testlib is a set of java classes used for more convenient unit testing - particularly to assist the tests for Guava itself.

Java classes for temporal testing and concurrency

Shared Classes Used For Testing of Artifacts In The Google HTTP Client Library For Java.

A Java source code formatter that follows Google Java Style.

A Java agent that rewrites bytecode to instrument allocation sites.

Memory Efficient Serialization Library

Base classes and utilities that provide access to JavaScript language constructs that are not available in pure Java.

Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object.

Google HTTP Client Library for Java. Functionality that works on all supported Java platforms, including Java 7 (or higher) desktop (SE) and web (EE), Android, and Google App Engine.