Oracle XML Developer's Kit (Oracle XDK) is a set of components, tools and utilities that eases the task of building and deploying XML-enabled applications. To provide a broad variety of deployment options, the Oracle XDK components are available for Java, C, and C++. Unlike many shareware and trial XML components, the production Oracle XDK are fully supported and come with a commercial redistribution license.
XDK Java Components:
Oracle XDK Java components are built on W3C Recommendations and Java JSR standards. The list of currently supported standards are: