[jopendocument] trouble combining spreadsheet and pdf generation examples

[stepheneb]

I tried to combine the spreadsheet created in this example:
http://www.jopendocument.org/start_spreadsheet_1.html.

Which created the file: "temperature.ods"

With the PDF generation in this example: 
http://www.jopendocument.org/tutorial_pdf.html

So instead of loading from

  doc.loadFrom("template/invoice.ods");

I start the pdf example with:

  doc.loadFrom("temperature.ods");

But I get this error:

  Java.lang.IllegalArgumentException: OfficeAutomaticStyles cannot be
null (NativeException)

I saw an earlier thread about this possibly being fixed in beta4 ...
but I couldn't find any source code repository to see if any progress
has been made towards fixing that bug.

Is there a public source code repository?

Would be great to see the library on github -- would make
collaboration much easier.