Java in XML
Prospects of encoding Java source code in XML
 Cosmos.java @ Google Code
Example Source path:  svn/cosmos/trunk/src/org/livcos/cosmos/Cosmos.java
 javac-API
The Java™ Programming Language Compiler, javac
 Javadoc Tool
Javadoc is a tool for generating API documentation in HTML format from doc comments in source code.
CodeML
Sorcerer
Sorcerer 0.6
Choosing the permalink context menu in FF3, Chrome2 or Safari4 does not produce anything.
https://sorcerer.dev.java.net/

Sorcerer is a source code cross reference generator. It analyzes a set of Java source files and produce HTML files that shows annotated source code.

/livcos.org/data/map/brainstorm/documentation