XmlDoclet
A JavaDoc doclet that outputs source code structure in XML format.
XmlDoclet is a JavaDoc doclet that outputs the source code structure of the packages, classes etc. in XML format.
Later, the XML data may easily be processed by standard tools such as XSLT to produce HTML, PDF, dot graphs etc.
Technically, this is done by wrapping the class and interfaces of the com.sun.javadoc packages into JAXB annotated classes, which allows for an easy serialization.