https://sourceforge.net/projects/javadocbook/ looks nice!

java -jar javadocbook.jar -t HTML hw.xml > hw.html
changes some docbook into some HTML. It’s nice because it’s so self contained…

http://mattpayne.org/db/hw.xml is some input taken from this tutorial. Results in the output http://mattpayne.org/db/hw.html

Maven2 understands simplified docbook. Maybe the javadocbook utility can be handy for someone using maven2 for their projects?