I\'ve written a docbook 5.0 document with the header:
Apart from the header you gave, did you try a smaller example, like this one from the DocBook 5.0: The Definitive Guide ?
An Example Book
Example
No notice is required.
Norman Walsh
This book is dedicated to you.
Foreword
Some content is always required.
A Chapter
Content is required in chapters too.
Optional Appendix
Appendixes are optional.
Just rendered it to a PDF through one of my Maven environments. Can you give a small example (or a few separated onces) containing some content, which makes the use of all the additional name spaces necessary.
In case the above example does not work, and you are interested in how I have setup my environment read Making DocBook content available in a Maven project site. Just replace the example with the above DocBook 5.0 example. Only the docbkx-maven-plugin
is of interest, in relation to this question. (PS: Some basic knowledge of Java and Maven2 is required for this.)