| Package | Description | 
|---|---|
| com.google.common.annotations | Common annotation types. | 
| com.google.common.base | Basic utility libraries and interfaces. | 
| com.google.common.cache | This package contains caching utilities. | 
| com.google.common.collect | This package contains generic collection interfaces and implementations, and other utilities for
 working with collections. | 
| com.google.common.escape | Interfaces, utilities, and simple implementations of escapers and encoders. | 
| com.google.common.eventbus | The EventBus allows publish-subscribe-style communication between components without requiring
 the components to explicitly register with one another (and thus be aware of each other). | 
| com.google.common.graph | An API for representing graph (node and edge) data. | 
| com.google.common.hash | Hash functions and related structures. | 
| com.google.common.html | Escapers
 for
 HTML. | 
| 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.math | Arithmetic functions operating on primitive values and  BigIntegerinstances. | 
| 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, and value types for
 treating them as unsigned. | 
| com.google.common.reflect | This package contains utilities to work with Java reflection. | 
| com.google.common.util.concurrent | Concurrency utilities. | 
| com.google.common.xml | Escapers
 for
 XML. |