Official Wiki for the JAXP Project at Java.net
The Java API for XML Processing (JAXP) enables applications to parse, transform, validate and query XML documents using an API that is independent of a particular XML processor implementation. JAXP provides a pluggability layer to enable vendors to provide their own implementations without introducing dependencies in application code. Using this software, application and tool developers can build fully-functional XML-enabled Java applications for e-commerce, application integration, and web publishing.
JAXP is a standard component in the Java platform. JAXP 1.4 is a maintenance release of JAXP 1.3 with support for the Streaming API for XML (StAX). An implementation of the JAXP 1.3 specification is included in Java SE 5.0 and an implementation of JAXP 1.4 is in Java SE 6.0.