Java EE (Java Enterprise Edition) General Discussion

Hi All,
Our web application has a requirement to generate MS Word documents using java on Solaris server. I have seen this topic being discussed at many places on net, but I found no proper solution. We have tried JACOB (Java COM bridge), but it works only on windows server. We also need bi-directional communication between the user and the word document generated, for example, once the document is generated, the user can view and make changes to it in the browser itself, and the changes are to be saved back to the server.
We have searched in many internet forums for this topic, (like openoffice, JACOB, Using Applet, Servlet communication for bi-directional communication, POI, iText, javaranch forum etc..) but still couldnt find a suitable solution which works on Solaris/Unix OS. Please let me know if anyone has got ideas on this..Any help is appreciated.

Thanks,
Srini.