Are you working with World, or with EnterpriseOne/One World? It does make a big difference. There is a separate discussion group area for Enterprise One for JD Edwards. Your question makes me think you are dealing with Enterprise One. JDE World is an RPG based, AS/400 computer only environment. Java hardly ever comes into play with JDE World. Could you be more specific on what you are trying to do?
I am a JDE World person. I do not have knowledge of OneWorld/Enterprise One. If you have not done so yet, please repost your question under the JDE Enterprise One forum. You are much more likely to find people there who can help you. JDE World people have no knowledge of this kind of stuff.