Java XML

The Java XML APIs consist of the following separate programming APIs:

• Java API for XML Processing, or JAXP.
• Java API for XML Messaging, or JAXM.
• Java API for XML-based RPC, or JAX-RPC.
• Java API for XML Registries, or JAXR.

Only the Java API for XML Processing is a required API in Enterprise Java Beans Specification 1.3.

A number of different software packages implement these APIs including

• Xerces -- One of the original and still (in 2002) most popular SAX and DOM parser.
• Crimson XML -- A faster SAX and DOM parser.
• Xalan -- The original and still (in 2002) most popular XSLT/XPath implementations.
• Sparta XML -- A fast and small SAX and DOM parser that also includes an XPath subset.