Packages
com.google.common.annotations Common annotation types.
com.google.common.base Basic utility libraries and interfaces.
com.google.common.base.internal  
com.google.common.collect This package contains generic collection interfaces and implementations, and other utilities for working with collections.
com.google.common.io This package contains utility methods and classes for working with Java I/O, for example input streams, output streams, readers, writers, and files.
com.google.common.net This package contains utility methods and classes for working with net addresses (numeric IP and domain names).
com.google.common.primitives Static utilities for working with the eight primitive types and void.
com.google.common.util.concurrent Concurrency utilities.