php -> jsp interop?

okay, the situation: i have a bundle of php scripts that do nifty things like talk to oracle, format output, et cetera, all things php is quite handy at doing. and i have a servlet that can render 3d graphs and charts so the stuff i get from the db looks purty so the suits can ooh and aah over how cle- ver the monkeys with funny-coloured hair down in engineering are. oh, and i have another servlet that can assemble an excel workbook from the dataset, so the suits can wave their hands in the clients' general di- rection and point out how robust our feature-set is. the suits seem reasonably happy with this state of affairs. problem is, i can't quite figure out how to tell the jsp/servlet bit about the data that comes back from oracle. 'leastways not cleanly. url-encoding is a bust, as we quickly run into the maximum length of a url. POSTing to the servlet/GETting the resulting image is kludgy in the extreme, and has some nontrivial synchronization issues, to boot. and the SAPI stuff in 4.0.2 is undocumented, and from what i can tell appears to exist for chaining -to- php from servlets, which is the opposte direction of what i need. so, has anyone here called jsp/servlets from php? how? cheers, /rls