Apache XML Graphics Commons is a library that consists of several reusable components used by Apache Batik and Apache FOP. Many of these components can easily be used separately outside the domains of SVG and XSL-FO. You will find components such as a PDF library, an RTF library, Graphics2D implementations that let you generate PDF and PostScript files, and much more.
While the author of BSAX-J has not yet come to a final conclusion about the need for a binary XML format, BSAX is his idea of one possible encoding that leverages other XML prior art (SAX events and UTF-8, in particular). It is complete in that it can be used to perform round-trip conversions from textual XML to SAX events to BSAX binary streams, and back to SAX events and textual XML. The test code in the distribution does exactly that for a simple example XML file, and measures the difference in file size (the file is slightly smaller for the BSAX encoding of the sample file) and the difference in read time (the read time is significantly faster for the sample file).
Bambookit GUI is a completely XML-scriptable user interface to build real-time interactive Web application front-ends. Applications occupy 100 Kb of device memory and run on any Java-enabled browser. Users can move windows, resize containers, scroll and sort tables, lists, trees, see real-time data display, use a layout manager, and more. All rendering and event handling is managed in the XML scripts.
DDMSence (pronounced "dee-dee-em-Essence") is a Java API that supports the DoD Discovery Metadata Specification (DDMS). It provides a complete implementation of the DDMS specification using DDMS 2.0, 3.0, 3.1, 4.0.1, or 4.1. Validation is performed according to both the schema and the specification, and custom validation rules can be defined with ISO Schematron.
Dexter is a tool that allows users to define extended attributes which can be associated with descriptors and editors. These attributes can be embedded into any well-formed XML document. The resulting embellished document, the 'source', is then input to the dexter engine. This will generate one or more XSLT stylesheets describing the input document interpolating editor modifications and any instructions specified by the descriptors. As dexter's operations are specified exclusively with extended attributes, all but the most unforgiving of XML content viewers will continue to see the decorated source exactly as the designer saw it before.
Eddie is a liberal RSS and Atom feed parsing library for Java. It is a SAX-based parser, and as a result is capable of parsing a significant number of broken feeds. It was written after discovering that the well-known ROME feed parser is implemented using DOM, and therefore incapable of dealing with ill-formed XML