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Commons-IO contains utility classes, stream implementations, file filters, and endian classes. It is a library of utilities to assist with developing IO functionality.
Defines a simple interpreter of an expression language called XPath. JXPath applies XPath expressions to graphs of objects of all kinds: JavaBeans, Maps, Servlet contexts, DOM etc, including mixtures thereof.
The standard Java libraries fail to provide enough methods for manipulation of its core classes. The Commons Lang Component provides these extra methods. The Commons Lang Component provides a host of helper utilities for the java.lang API, notably String manipulation methods, basic numerical methods, object reflection, creation and serialization, and System properties. Additionally it contains an inheritable enum type, an exception structure that supports multiple types of nested-Exceptions and a series of utilities dedicated to help with building methods, such as hashCode, toString and equals.