There are several standard bodies involved in Java and XML.

XML specifications

From a specifications perspective World Wide Web Consortium (W3C) provides the base specifications for XML.

http://www.w3.org

Developing Applications using XML

The Apache XML project provides open source XML implementation solutions.

You can find the following at the Apache XML site: 
http://xml.apache.org

Listed below are the Apache projects related to using XML in Java:

Xerces - XML parsers in Java, C (with Perl and COM bindings)

Xalan - XSLT stylesheet processors, in Java and C

Cocoon - XML-based web publishing, in Java

FOP - XSL formatting objects, in Java

Xang - Rapid development of dynamic server pages, in JavaScript

SOAP - Simple Object Access Protocol

Batik - A Java based toolkit for Scalable Vector Graphics (SVG)

Crimson - A Java XML parser derived from the Sun Project X Parser.


The Java Community Process (JCP) also has developed a comprehensive set of application programming interfaces (API) for developing XML applications in Java.

In this tutorial you will see how to develop XML applications in Java using different methods. All the methods are based on downloadable and free tools and technologies.