About copyrights and licences...

Hi everybody... The work with the new wysiwyg architecture has started and we got the first little results. A very basic html2xwiki converter was programmed. But I have droped the handmade converter and used an other aproach: JParsec I got it running, but I have a question about the copyrights and licences. As I used a lot of code from http://jparsec.codehaus.org/Html2Confluence I dont know how the file header of the source files sould look like. Thanks, austriancoder