Sources for .jar extensions in xsl-ns stylesheets - can be included?

Hi,
tarballs with docbook-xsl-ns contain Java extensions only as the .jar
files. Because of the distribution rules, I should rebuild the .jar
files during the build. 
I know that these sources are in svn. Can you please include the sources
for the java extensions so I can rebuild the .jar files during the build
time in next version? Ideally, with support in Makefiles.

Thanks in advance!

Regards,
         Ondrej Vasik