Inserting a chart to a calc document

Hi,

I have been trying to insert a chart to a calc spread sheet in java
language. I followed the steps in the developer's guide wiki
http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/Charts/Creating_and_Adding_a_Chart_to_a_Spreadsheet
.
But I cannot see the inserted chart in my spreadsheet document. Then I tried
connecting a controller to the created chart document, but this was
also unsuccessful.

Is there any other steps other than the ones in the wiki I should follow in
order see the created chart in the document ?



-- 
Best regards,
Pivithuru Wijegunawardana
University of Moratuwa
Sri Lanka